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SKU #: DDH1051

Diono Radian RXT Convertible Car Seat


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List Price: $339.99

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Arrives for Christmas to Woodbridge, NJ 02108 (Change)


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Diono Radian RXT Convertible Car Seat

The Radian RXT is a highly versatile car seat that could be the only seat you'll ever need. It comfortably seats rear-facing children then converts to a booster for children. It's built for strength and safety with a steel alloy frame, reinforced sidewalls, adjustable head support and our patented Safestop energy absorbing harness. EPS foam surrounds the child's head and body to provide complete side impact protection. Our unique SuperLATCH system makes installation easy. The RadianRXT is NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions. The RadianRXT sits low on a vehicle seat for easy child boarding, features memory foam padding and infant support pillows. In addition to all this versatility, it folds flat for travel and storage, has a 10 year life and offers amazing safety, comfort and convenientce your child won't outgrow.

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  • Steel alloy frame and aluminum reinforced sides
  • Safe stop energy absorbing harness
  • Fits 3 across in a mid-size vehicle and offers more shoulder space
  • 5 Shoulder and 3 buckle positions for custom fit
  • Expandable sides and longer seat bottom for leg support and comfort
  • 12 Height positions for adjustable head support, 2 recline positions in forward-facing mode
  • Multi position cup holder system, 6 cup holders positions
  • Rear-facing: 5 - 45 lbs
  • Forward-facing: 20 - 80 lbs (and up to 57'') in a 5-point harness
  • Booster to 120 lbs
  • Able to hold up to 4 cup holders (1 included)
  • Radian collection
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  • Overall: 28.5" H x 17" W x 10" D
  • Overall Product Weight: 29lbs

Diono Radian RXT Convertible Car Seat

Additional Documents


Weights & Dimensions

  • Overall: 28.5" H x 17" W x 10" D
  • Seat: 28.5" H x 15" W x 13" D
  • Back Height: 28.5"
  • Overall Product Weight: 29lbs


Product Type: Convertible car seatShell Material: Plastic; Metal
  • Shell Material Details: Steel, Aluminum
Cushion Fill Material: FoamTheme: Cars
Number of Items Included: 1Non Slip: Yes
Weight Capacity: Rear facing (Min): 120 PoundsWeight Capacity: Rear facing (Max): 45 Pounds
Weight Capacity: Forward facing (Min): 20 PoundsWeight Capacity: Forward facing (Max): 80 Pounds
Weight Capacity: Booster (Max): 120 PoundsLifestage: Baby; Kid
Maximum Child Height: 57 InchesOptional Car Base: No
Base Included: NoOrientation: Reversible
Headrest: Yes
  • Adjustable Headrest: Yes
  • Removable Headrest: Yes
Side Support: Yes
Arm Rests: Yes
  • Rotating Arm Rests: Yes
Reclines: Yes
  • Number of Reclining Options: 2
Harness Type: 5 PointPadded Straps: Yes
Snack Tray Included: NoFoldable: Yes
Carrying Handle Included: NoSide Storage Pockets: No
Removable Seat Cushion: Yes
  • Machine Washable: Yes
Removable Cover: Yes
  • Machine Washable Cover: Yes
Cup Holders Included: Yes
  • Number of Cup Holders: 1
  • Removable Cup Holders: Yes
  • Cup Holder Side: Movable
Commercial Use: Yes
Country of Manufacture: China 


Assembly Required: No 


JPMA Certified: YesASTM Certified: Yes
General Conformity Certified: YesNHTSA Certified: Yes
National CPS Certified: YesHSRC Compliant: Yes
FMVSS 213 Compliant: YesFMVSS 302 Compliant: Yes
FAA Inversion Compliant: YesEPP Compliant: Yes
U.S. NCAP Tested: Yes 

About the Manufacturer

Diono products are the ideal solution for today's "on the go" family, with state-of-the-art product designs that combine safety and convenience so that every family excursion can be the enjoyable experience it was meant to be. Today, with more than 100 product offerings available in 54 countries worldwide and company offices in the U.S., the United Kingdom, Canada and Germany, Diono continues to answer families' everyday needs with car seats, storage solutions, and related travel and stroller accessories that have earned the trust and respect of parents around the globe.

Diono Radian RXT Convertible Car Seat


“Hi, how easy is it to take the fabric off to the car seat?” asked by Tuyen

"Hi Tuyen, the cover is simple to remove." Ashley from Wayfair


“Hi, is this car seat available in color storm?” asked by Asha

"Hi Asha, yes, this car seat is available in color storm." Marty from Wayfair


“Hi, what is the seat's fabric?” asked by Nickie

"Hi Nickie, the seat is upholstered with microfiber." Lisa from Wayfair


“Hi, what is the weight capacity of this car seat when facing rear?” asked by Gilda

"Hello Gilda, the weight capacity is 5-45 lbs." Janie from Wayfair


“Hi, what is the weight capacity of this car seat when facing forward?” asked by Emman

"Hello Emman, the weight capacity is 20-80 lbs." Janie from Wayfair


“Hi, can it be reared facing?” asked by Macky

"Hello Macky, yes, the seat can be either rear or forward facing." Janie from Wayfair


“Hi, does the harness need to retreat?” asked by Liza

"Hello Liza, yes, the harness will need to be retreated." Janie from Wayfair


“Hi, does the harness slide fit to the child's changing height?” asked by Don

"Hello Don, yes, it can accommodate the child's changing height." Janie from Wayfair

Still have questions about this product? We're here to help

When you buy a Diono Radian RXT Convertible Car Seat online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Diono Part #: 16915 here. If you have any questions about your purchase or any other Car Seats product for sale our customer service representatives are available to help.Whether you just want to buy a Diono Radian RXT Convertible Car Seat or shop for your entire home, Wayfair has a zillion things home.

Diono Radian RXT Convertible Car Seat

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Return Policy

We want you to love it. If you don't, you may return your purchase within 30 days of delivery. All you need to do is visit our Self-Service Return Center for instructions. Return credits are issued within 24 hours once the item is received and inspected. Please note that shipping charges are non-refundable. The cost of return shipping will be deducted from your refund.

30-Day Return Policy
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Customer Reviews

Tell Us What You Think!

Tell us what you think about the Radian RXT Convertible Car Seat. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

Average Overall Rating:
(based on 165 reviews)

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Love it!

 from Virginia Beach, VA– Verified Buyer

Other than being a little heavy, I love this car seat so far!!!

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Great small profile car seat

 from Marietta, GA– Verified Buyer

We have purchased 5 Diono's thus far and are getting ready to purchase a 6th. Great sturdy seat although a bit heavy to carry through the airport.

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Love this seat

 from NJ– Verified Buyer

I would recommend this sets to anyone shopping for a car seat. The sturdy steel frame makes me feel confident my daughter is protected. The seat is secure and comfy in from or rear facing positions.

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car seat

 from College Station, TX– Verified Buyer

Better than pictures, great quality easy to put together and move.

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Faster than expected delivery

 from Valencia, CA– Verified Buyer

Great experience, fast delivery & product was all that I had hoped! Not to mention an excellent deal!

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Nice seat

 from Hoboken, NJ– Verified Buyer

Seat is sturdy and heavy. Installation is somewhat easy once you get the hang of it.

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 from Richmond, TX– Verified Buyer

Not a lot of hype around this one, but definitely the best!

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Car Seat

 from Brooklyn, NY– Verified Buyer– Top 500 Reviewer

Very pretty color and good quality . I am happy with my purchase.

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Great Seat

 from Plainfield, IL– Verified Buyer

Pain to install but once you get the hang its a breeze.

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 from Alpharetta, GA– Verified Buyer– Top 5 Reviewer

Good item, accurate description, and picture, fast shipping and delivery.

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