Solar Pool Cover 18 Ft Round Pool Bubble Cover 16 Mil Pools Solar Blanket With Bubble Pe Material

432" H x 192" W

Solar Pool Cover – Keep Pool Warm:Keep your pool warm with our solar pool cover. At 12 mil thickness, it helps heat water faster and retains warmth overnight. Easy to install and trim to fit, it reduces evaporation by 95%, saving water and heating costs. Ideal for residential and commercial pools.

Great quality. Anonymous. Tue Jun 09 2026

18'

Reduce water evaporation with our 12-mil Round Solar Blanket for Above-Ground Pools. To optimize heat retention, this blanket is clear which allows more solar rays to reach the depths of your pool for consistent, natural warmth. Thermal bubbles retain that warmth even after the sun is gone, keeping your pool water warm even on cloudy days and cool nights. This innovative technology can increase your pool’s temperature up to 15 degrees Fahrenheit. Backed by a 5-year warranty, our blankets are designed to withstand years of direct sunlight and harsh conditions.

I’ve used before, warms pool up quickly. Connie. US. Mon Apr 20 2026

18' x 36'

Reduce water evaporation with our 14-mil Solar Blanket for Rectangular In-Ground Pools. To optimize heat retention, this blanket is clear which allows more solar rays to reach the depths of your pool for consistent, natural warmth. Thermal bubbles retain that warmth even after the sun is gone, keeping your pool water warm even on cloudy days and cool nights. This innovative technology can increase your pool’s temperature up to 15 degrees Fahrenheit. Backed by a 6-year warranty, our blankets are designed to withstand years of direct sunlight and harsh conditions.

perfect! Does what is intended and rolls up easily.. Kimberly. Independence, MO. Mon Jun 08 2026

Solar Pool Cover – Keep Pool Warm:Keep your pool warm with our 24ft/7.32m solar pool cover. At 8 mil thickness, it helps heat water faster and retains warmth overnight. Easy to install and trim to fit, it reduces evaporation by 95%, saving water and heating costs. Ideal for residential and commercial pools.

I'm not sure how much it actually heated the pool, but it fit perfectly. It's also not super heavy so it was pretty easy to fold back up!. Jennifer. Braintree, MA. Wed Jun 10 2026

90" H x 185" W x 185" D

The hooks on the suspension rods are not universal. They did not fit my standard size pool frame.. Laquita. Arkansas. Sun May 31 2026

396" H x 396" W

Solar Pool Cover – Keep Pool Warm:Keep your pool warm with our solar pool cover. At 8 mil thickness, it helps heat water faster and retains warmth overnight. Easy to install and trim to fit, it reduces evaporation by 95%, saving water and heating costs. Ideal for residential and commercial pools.

It’s not true to size wasn’t able to use it for my pool. Tanaeia. US. Fri Jun 12 2026

8 FT

Ensure that your above-ground pool stays clean and free of debris all year long with the help of the Round Pool Cover. This cover can stand up to the elements and help maximize your pool season. The reliable cover will ensure leaves, sand, and other debris stay out so you can spend more time enjoying your pool and less time cleaning it. Designed with a thick construction, the cover deflects UV rays to help keep the water at comfortable temperatures. The tie-down ropes of cover ensure a snug fit on the pool. Your pool will be instantly ready for you to make a splash the moment you take off the cover. Whether a bad storm is rolling in, you're packing up for a vacation, or that winter chill is setting in, be prepared to protect your pool from anything with Pool Cover.

Does a great job keeping bugs and debris out of the pool!. Antoinette. Fri Jun 05 2026

185 ft. W

Round Multifunctional All Weather Cover Pool Dome Enclosure For Outdoor Pools, Compatible W/Clean & Warm Water Frame Pools

288" W x 144" D

It is equipped with UPF50+ professional anti-ultraviolet certification, which can effectively block over 98% of harmful ultraviolet rays. Not only does it prevent water quality deterioration caused by direct sunlight, but it also protects swimming pool equipment from ultraviolet damage, reducing maintenance costs. The dense bubble structure on the cover surface is like millions of miniature solar panels, efficiently absorbing sunlight and converting it into thermal energy, raising the water temperature by 8-15℉. Even in the cool morning or evening, you can enjoy a comfortable water temperature.

It’s currently winter, so we can only use the cover to keep the pool clean. We will have to wait a few months to determine the solar functionality. Overall, the cover is lightweight and easy to cut. It is large enough that we can get 2 covers out of it.. Christie. Fresno, CA. Sun Jan 04 2026

A solar blanket is a great investment for every pool owner. In fact in some areas of the country a good quality solar blanket may be all you need to warm your pool water and make your pool more enjoyable. Features: Solar blankets will increase pool water temperature by 10 to 15 degrees (or more in season). Significantly reduces heating costs by up to 80%. Superior heat absorption and retention. Reduces evaporation saving water and costly chemicals. Extends swimming season by up to 6 weeks. Solar blankets are made from a durable polymer material with thousands of tiny sealed air bubbles. They float "bubble side down" on the surface of your pool water when the pool is not in use and allow solar energy to pass through which is then trapped as retained heat in the pool. 8mm thickness. Made in the USA. Solar reel not included. Dimensions: 18' diameter. Material(s): UV stabilized polyethylene. Note: photo displays a rectangular solar cover that has been custom cut by a customer to fit their pool. This listing is for round solar cover.

1" H x 384" W x 168" D

Long-lasting Solar Pool Cover：With our solar cover made from 12mil thick PE material, enjoy long-lasting and stable insulation. It's robust and durable, reducing the need for frequent replacements.

We’ve had the pool cover for over a year now in south Florida and so far it’s holding up well. No tears, but it has stiffened a bit over time. All in all pleased with its quality. Alexia. Bonita Springs, FL. Fri Apr 17 2026

40' L x 20'

Using no fuel or electricity, this pool solar blanket offers you an effective and affordable solution to heat up your pool water and extend swimming season. And this pool solar reduces 95% of water evaporation. Moreover, this pool cover can also prevent leaves, dust and debris from accumulating in the water. Also, it can raise water temperature by up to 8-15℃/ 14-27℉in about 5-7 days of consistent sunlight(Please Note: The effect of heating is influenced by the environment). Besides, it’s easy to store and transport with the carrying bag. In addition, you can freely cut it into the shape you want to fit the shape your pool!

Great cover, excited to use in summer to keep the pool warmer. Color blue is very vibrant, easy to cut to shape once kinda laid out on the water. Amanda. Boise, ID. Sat Mar 14 2026

Ensure that your above-ground pool stays clean and free of debris all year long with the help of the Round Pool Cover. This cover can stand up to the elements and help maximize your pool season. The reliable cover will ensure leaves, sand, and other debris stay out so you can spend more time enjoying your pool and less time cleaning it. Designed with a thick construction, the cover deflects UV rays to help keep the water at comfortable temperatures. The tie-down ropes of cover ensure a snug fit on the pool. Your pool will be instantly ready for you to make a splash the moment you take off the cover. Whether a bad storm is rolling in, you're packing up for a vacation, or that winter chill is setting in, be prepared to protect your pool from anything with Pool Cover.

has worked through our new mexico high winds.. Anonymous. US. Sun Nov 16 2025

Ensure your pool stays clean and pristine with the Bestway Round Pool Cover, the essential accessory for maintaining your above-ground pool. This cover is designed to keep debris, leaves, and trash out of the water, reducing the amount of chemicals needed to keep your pool in perfect condition. With the Round Pool Cover, your outdoor pool will always be ready for a refreshing swim. Crafted for convenience and durability, this pool cover features strategically placed drain holes to prevent water accumulation and stretching caused by the weight of pooled water. These drain holes ensure that your pool cover remains effective and easy to manage, even after heavy rain. Additionally, a built-in rope is included in the lining, allowing you to tighten the cover securely around the pool, providing a snug fit that withstands windy conditions. Specifically designed for Bestway 15-foot round frame pools and round inflatable ring pools, this cover fits perfectly and offers maximum protection year-round. The robust construction ensures long-lasting performance, giving you peace of mind that your pool is well-protected year after year. Invest in the Bestway Round Pool Cover to keep your pool water clear and inviting, free from unwanted debris. This essential accessory not only simplifies pool maintenance but also extends the life of your pool by reducing the wear and tear caused by external elements. Keep your pool ready for fun and relaxation with this reliable cover.

Does the job. Fits perfectly.. Anonymous. Sat Mar 14 2026

If the first step you take in your pool is always ice cold, this Intex 29024E 16 16-foot above-the-ground Swimming Pool Solar Cover will come in handy. This round pool cover helps you enjoy warmer water and a longer swimming season. Suitable for 16-foot diameter Intex round pools, it fits the Easy Set and Framed 16-foot models. You can either place it directly on top of the water surface or tuck it under the inflatable ring to trap the heat inside the water. This helps reduce water evaporation by up to 95%, saving you time and money since you don't have to fill up your pool quite as often. Easy and economical to use, this 16-foot above-the-ground Swimming Pool Solar Cover is a must-have if you want to enjoy the warm water in your pool for longer.

Very nice and works well with my pool!. Linda. Camilla, GA. Tue Apr 15 2025

180" W x 180" D

This solar pool cover is crafted from a specialized material. Its surface uses countless tiny air cells to collect heat from the sun during the day and then transfers that warmth into the pool water, helping to extend your swimming season. Enjoy a more pleasant swimming experience. Note: Place the cover with the bubble side facing down. Due to thermal expansion and contraction, the bubbles may appear slightly deflated before being exposed to sunlight.

So I WAY overestimated the size of this. I have 10 foot pool for my kids and we have well water so I was hoping this would help warm up the water and it DEFINITELY helped warm up the water. I have yet to cut it but I know it says that it can be. I don’t foresee any issues when cutting it because of the material. My only complaint is the size which is my own fault. Sara. Bradford, NH. Mon Jun 08 2026

33 ft. W

Solar Pool Cover – Keep Pool Warm:Keep your pool warm with our 24ft/7.32m solar pool cover. At 8 mil thickness, it helps heat water faster and retains warmth overnight. Easy to install and trim to fit, it reduces evaporation by 95%, saving water and heating costs. Ideal for residential and commercial pools.

SOLAR POOL COVER: 16FT - Enjoy warmer water, a more comfortable swim experience, and a longer swimming season with the Intex 16' Solar Pool Cover, designed to maximize heat retention while reducing the effort needed to maintain your pool. This cover is suitable for 16' diameter round pools and provides an easy, lightweight, and economical solution for everyday pool care. KEEPS HEAT IN: It helps keep pool water warmer by capturing and transferring the sun’s natural heat directly into the water through its air bubble design, creating a simple solar heating effect without additional equipment. REDUCES WATER EVAPORATION: In addition to improving temperature, it also helps reduce water evaporation by up to 95%, which means less frequent refilling and better water conservation throughout the season. LESS CHEMICAL USAGE: By keeping debris out and limiting chemical loss, it can also help reduce pool chemical usage by up to 50%, saving both time and maintenance costs over time. The cover is easy to place and remove, making daily use convenient, and it folds down quickly for compact storage. A reusable carry bag is included for easy storage and transport when not in use, helping keep your pool area organized and clutter-free. SPECIFICATIONS: Pool cover size: 16ft diameter. Durable Polyethylene material. Protects from leaves and debris. Superior temperature control.

I love it. Fit great.. Maria. Cleveland, OH. Tue Jun 09 2026

216 ft. W

Retractable Pool Cover, Pvc Film Fiberglass Rod Pool Fence, Outdoor Swimming Pool Accessories

18 ft. W x 34.4 ft. D, Blue

Exact Fit: Making it 2 ft larger than the pool size you ordered, offering total coverage without any gaps and stretching

This Royal Shade Pool shade is made from great material and arrived in perfect condition. Shipping was smooth and it was packaged well. It was a very heavy package. We didn’t get it in time for the closing. Angela. South Haven, MI. Thu Nov 27 2025

1" H x 336" W x 168" D

Long-lasting Solar Pool Cover：With our solar cover made from 12mil thick PE material, enjoy long-lasting and stable insulation. It's robust and durable, reducing the need for frequent replacements.

Our pool actually got too warm and we had to take this off for a while. It does its job well.. Anonymous. Fri May 08 2026

18' W x 108" H

16-Foot Retractable Pool Cover, PVC Film Fiberglass Rod Pool Fence, Outdoor Swimming Pool Accessories

Great!. Laurie. Roblin, MB. Mon Jun 01 2026

0.1" H x 216" W x 408" D

Heavy Duty Protection: Crafted from durable polypropylene, this heavy duty pool cover supports up to 500 lbs and delivers long-lasting use for your swimming pool. Enjoy a child-proof rectangular pool cover Certified Safety: UL Classified to ASTM F1346, this pool safety cover meets strict U.S. standards for inground pools. Rest easy knowing your winter pool cover provides reliable protection, acting as a secure barrier for children and pets Year-Round Care: Protect your pool all season with a UV resistant in ground pool cover that helps reduce evaporation and conserve water. Block harsh sunlight and keep your pool cleaner for longer, saving both water and maintenance time Debris Shield: This ASTM certified pool cover acts as a powerful debris and leaf guard, keeping out unwanted dirt, leaves, and winter mess. Your swimming pool stays cleaner, so you spend less time on maintenance and more time enjoying your pool Fast, Easy Installation: All hardware is included for simple setup, whether for home or commercial use. This efficient pool safety cover is designed for quick installation on most inground pools, letting you secure your outdoor space with ease

This was an excellent buy. This item was easy to install, durable and I'm looking forward to provide an update on it.. Sandy. Mccomb, MS. Sun May 31 2026

18' W x 108" H

24 ft. W

Designed specifically for a ground swimming pool. The lining is made of industrial-grade thickened black geotextile (a tough blend of polyester, acrylic and cotton), with a thickness 1.5 times that of ordinary products. Designed to sit between the pool liner and the ground, it helps guard against rocks, roots, grass, gravel, and rough concrete surfaces that can wear down or puncture your pool bottom. The seamless one-piece design provides full, even coverage without uncomfortable stitched seams, while the dense geotextile material adds a softer feel underfoot for family swim days all season long. Simply unroll it on level ground, place your pool on top, and enjoy added protection before the fun begins.

Works great...smoothes out easy. Lisa. Abilene, TX. Fri May 29 2026

90.1" H x 185.1" W x 185.1" D

Widely adaptable, suitable for most common above-ground circular swimming pools, compatible with pools featuring a circular top rail and even-numbered outriggers.

288" H x 288" W

Solar Pool Cover, Save Energy & Enjoy More:Extend your swimming season with our solar pool cover. It helps raise water temperature and retains heat overnight. Made from durable 16 mil PE material, it reduces evaporation by 95%, minimizes refill needs, and keeps your pool clean.

15.75" H x 169" W x 98" D

Rectangular Pool Cover for Above Ground Pools, Solar Oval Pool Covers for Rectangular Frame Pools, Heavy Duty Winter Cover Ideal for Waterproof and Dustproof

Nice cover. Jeanette. US. Sat Jul 12 2025

16 ft H x 24 ft W

PREMIUM MATERIAL: Made of durable 16 mil Pe material, the solar pool cover is more durable and can be used for several seasons. BUBBLES DESIGN:With thousands of thermal bubbles whose diameter is measuring 9 mm，It can keep effectively collects solar energy to keep water warm, reduce the temperature difference between day and night, so you can enjoy the joyousness of swimming the next morning. EASY TO CUT AND DIY: The pool solar blanket can be freely cut to fit any shape of the pool, such as rectangle, square, round and other irregular shapes. REDUCE POOL WATER EVAPORATION AND KEEP YOUR POOL CLEAN: Using the pool blanket can prevent up to 95% of water evaporation, which can reduce your water bills in hot summer. Besides, the pool cover can help to keep your pool water away from dust or leaves, saving your cleaning time and more time to enjoy swimming. WIDE APPLICATIONS: The swimming pool solar cover can be used for in-ground,above-ground swimming pools, spas and tubs.

Everything I was expecting!! So thankful it was delivered 2 days early!. Gb. Mexico Beach, FL. Tue Mar 10 2026

0.02" H x 120" W x 120" D

Long-lasting 32 x 16 ft Solar Pool Cover:With our solar cover made from 12mil thick PE material, enjoy long-lasting and stable insulation. It's robust and durable, reducing the need for frequent replacements.

Protect your pool before damage starts. This 450GSM extra-heavy pool liner pad is designed to sit between your above-ground pool liner and the ground, creating a dense protective layer against rocks, roots, weeds, grass, sand, gravel, and concrete surfaces. The oversized 16.5' x 33' rectangular design offers wide coverage for large above-ground pools, while the one-piece seamless construction helps eliminate weak spots caused by gaps or overlapping pads. Beyond basic protection, the thick geotextile fabric adds a smoother, more comfortable base underfoot, making every swim feel better for kids, families, and everyday backyard use. Durable, trim-to-fit, and easy to install, this pool ground mat helps reduce liner wear and supports longer-lasting pool performance season after season.

Varpoolfaye Up to 8,000 Gallons Plug-In Pool Heater for Above Ground Inground Pool, Titanium Heat Exchanger Swimming Pool Heat Pump 30,000BTU/hr, 110V/60Hz

Service was quick. Delivery questionable. Product not tested as not pool weather yet. Anonymous. Thu May 07 2026

180" H x 360" W, Blue

This solar pool cover is crafted from a specialized material. Its surface uses countless tiny air cells to collect heat from the sun during the day and then transfers that warmth into the pool water, helping to extend your swimming season. Enjoy a more pleasant swimming experience. Note: Place the cover with the bubble side facing down. Due to thermal expansion and contraction, the bubbles may appear slightly deflated before being exposed to sunlight.

This pool cover is perfect. I like the clear color so i can see my pool water through it. I've had them before and they do a great job keeping the heat in when it's too chilly to swim without heater on. We don't lose heat overnight like we used to.. Lisa. CT. Sun Jun 07 2026

Specification: Size: 18x34 / 20x38 / 22x42 / 18x34+4x8 ft Color: blue Material: polypropylene  Packing list: 1x Inground safety cover 1x Hardware bag 1x Assembly guide

Great product.. Helen Sue. Ellisville, MO. Mon Sep 22 2025

Perfect for pools up to 8000 gallons or 18 ft in diameter above-ground and in-ground, this smart inverter-powered electric heat pump keeps your pool at the perfect temperature while slashing energy costs.

Was easy purchasing but the delivery was delayed , I was hoping to be in the pool in time grandsons birthday on September 27 and before.. Rick. CA. Mon Dec 29 2025

58000 BTU Inverter Swimming Pool Heat Pump for Above Ground Pool 17000 Gallons Electric Pool Heater for In Ground Pools WiFi Control 220v

1" H x 180" W x 180" D

Keep your pool pristine from fall to spring with the Royal Shade Winter Pool Cover—engineered for long-lasting durability and maximum protection. Made from a thick woven polyethylene and reinforced with a double-stitched perimeter, this cover is built to withstand heavy snow, wind, and debris.

Heavy-duty cover that actually stays put in the wind. Fits our above-ground pool very well, feels durable, and was easy to install. Much better quality than the thin tarp-style covers we’ve used before. Material feels sturdy and it gives the pool a much cleaner look while keeping debris out.. Mike. Gagetown, MI. Thu May 14 2026

12FT

Round Multifunctional All Weather Cover Pool Dome Enclosure for Outdoor Pools, Compatible w/Clean & Warm Water Frame Pools

15.42' W x 90" H

Round Multifunctional All Weather Cover Pool Dome Enclosure For Outdoor Pools, Compatible W/Clean & Warm Water Frame Pools

Nice. Hélène. Marieville, QC. Wed May 20 2026

18 ft. H x 18 ft. W

The Pool Cover is designed for maximum durability and protection. Made from 140 GSM polyethylene scrim with heavy-duty copper grommets every 4 feet, this cover resists punctures, tears, and chemical stains, including chlorine. The black underside further helps inhibit algae growth. LAB-tested for over 20,000 hours, this pool cover is UV-stabilized to prevent sun damage such as drying, tearing, and fading, ensuring long-lasting performance in various weather conditions.

Solar Pool Cover – Keep Pool Warm:Keep your pool warm with our 24ft/7.32m solar pool cover. At 8 mil thickness, it helps heat water faster and retains warmth overnight. Easy to install and trim to fit, it reduces evaporation by 95%, saving water and heating costs. Ideal for residential and commercial pools.

Protect your pool and loved ones with this ultra-durable safety cover, made from high-density polypropylene and reinforced with stainless steel fittings and brass ground spikes for a secure fit. The 22x42 ft cover is ideal for 20x40 ft pools, offering reliable coverage with crimped metal webbing ends and wear-resistant adhesive strips to prevent damage over time. Designed to withstand up to 400 lbs and temperatures as low as -10°F, it keeps debris out and helps prevent accidental entry by children and pets. Easy to install, remove, and store, this solid safety cover ensures clean water and peace of mind through every season.

Great heavy duty cover. Easy to install. Fast shipping! Great price!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Anonymous. Tue May 05 2026

1" H x 14" W x 14"D

A solar pool cover is one of the most economical ways to keep your pool warm and extend the swimming season. Often referred to as a solar blanket this cover is designed with thousands of tiny air bubbles which trap heat from the sun and transmit that to the pool water. These solar covers often keep the water temperature 3-8 degrees warmer. They take the heat from the sun during the day and trap it in the water preventing the loss of heat on evenings and cloudy days. Solar covers allow you to swim in warm water even on chilly days and keeps your water levels high reducing evaporation. Get your solar blanket today for a warm swimming pool tomorrow! Product Features: Round blue swimming pool solar cover. Increases and keeps water temperature 3-8 degrees warmer. Reduces heat loss up to 75%. Reduces evaporation saving water and costly chemicals up to 97%. Extends swimming season by up to 6 weeks. Keeps your pool clean by blocking dirt and debris from water. Can be used in both swimming pools and spas. Bubble diameter: 12mm. Bubble height: 3mm. Dimensions: 14' diameter. Material(s): plastic/vinyl. Note: This listing is for the cover only pool not included

18 ft. W

Solar Pool Cover – Keep Pool Warm:Keep your pool warm with our 24ft/7.32m solar pool cover. At 8 mil thickness, it helps heat water faster and retains warmth overnight. Easy to install and trim to fit, it reduces evaporation by 95%, saving water and heating costs. Ideal for residential and commercial pools.

Would you look at that, it's time to take a swim and make a splash in this Intex 18 x 4-foot Inflatable Easy Set Swimming Pool. This pool comes with an 18 Foot Round Easy Set Swimming Pool Solar Cover and Easy-Set Type A Replacement Filter Cartridges (6-pack)This pool will make your backyard the place to be all summer as your family can relax and play. Get everything you need in 1 package. This set is constructed of puncture resistant 3 ply material and includes a 1,500 GPH filter pump, ladder, ground cloth, and debris cover. Easy Set pools are easy-peasy to set up and disassemble faster than a framed pool. Bring the beach to your backyard with this above ground Intex 18 x 4-foot Inflatable Easy Set Swimming Pool.

Good quality for the size and price. Wish I had smoothed out more of the wrinkles on the bottom while it was starting to fill up. But all around happy with my pool and look forward to cooling off and having a relaxing swim.. Laura. New Orleans La. Wed Aug 28 2024

18' H x 34' W

Protect your pool year-round with this heavy-duty polypropylene cover, designed to keep out debris and leaves while supporting up to 500 lbs for ultimate safety. Available in sizes like 18x34, 20x38, 22x42, and 18x34+4x8 ft, its child-proof design and UL Classified ASTM F1346 certification ensure peace of mind. Easy to install with all hardware included, this reliable blue cover helps maintain water cleanliness, saves on maintenance, and shields your pool from harsh winter weather—making it the ideal choice for hassle-free pool protection.

Awesome heavy duty cover!! Fast shipping!!! Easy to install!!! Great price !!!!’. Anonymous. Tue May 05 2026

16-foot Flow Clear Solar Pool Cover. Keep water and heat in and debris, leaves, and trash out of your pool with this Bestway solar pool cover. Above-ground swimming solar pool covers create a greenhouse effect in your pool. Solar covers also prevent water evaporation caused by dry winds or free-chlorine loss caused by UV rays. These covers are designed to keep water and heat in, but debris out. Extend your swimming season with a Bestway solar pool cover. Warning: choking hazard -- small parts. Not for children under 3 yrs.

Best cover ever so easy to use on and off light weight ))). Heidi. US. Tue Jun 07 2022

Blue, 1" H x 216" W x 412" D

Protect your pool year-round with the Safety Cover, crafted for unmatched durability and maximum safety. Made from durable, UV-resistant polypropylene, it features a 2-ply, triple-stitched reinforcement system for superior strength. With a weight capacity of up to 1,000 lbs, it withstands harsh conditions like heavy snow. Easy to install, the kit includes flush anchors for a sleek, safe setup. It keeps debris out, enhances safety, and reduces evaporation.