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Mi-T-M 4000 PSI Pressure Washer Chemical Injector


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Mi-T-M 4000 PSI Pressure Washer Chemical Injector

The convenient Mi-T-M accessories make using your Mi-T-M machines all that easier. The low pressure chemical injector makes application of recommended detergents possible. For use on cars, boats, van and engines, this injector is multi purpose. With a solid brass body, stainless-steel orifice for durability, clear, pliable detergent nozzle with adjustable chemical draw and quick connects for easy installation.


  • Stainless steel
  • Operates at 2000-4000 PSI
  • Made in the USA


  • Overall: 2" H x 6.25" W x 10" D
  • Hose Length: 24"
  • Overall Product Weight: 2lbs

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Mi-T-M 4000 PSI Pressure Washer Chemical Injector

Weights & Dimensions

  • Overall: 2" H x 6.25" W x 10" D
  • Product weight: 2 lbs
  • Thread Size: 0.375"
  • Inlet Diameter: 0.38"
  • Outlet Diameter: 0.38"
  • Hose Length: 24"
  • Hose Diameter: .25"
  • Overall Product Weight: 2lbs


Product Type: Detergent injectorFinish: Silver
Material: Metal
  • Material Details: Brass
Number of Items Included: 1
Hose Included: Yes
  • Bend Restrictor Included: No
  • Hose Connection: Threaded
  • Hose Material: Plastic
Spray Wand Included: No
Wheels Included: NoFoam Bottle Included: No
Minimum Pressure (PSI): 2000Maximum Pressure (PSI): 4000
Maximum Flow Rate: 6 Gallons per Minute (GPM)Water Temperature: Hot
Maximum Water Temperature: 180 FahrenheitGrade: Professional
Outdoor Use: YesCommercial Use: Yes
Country of Manufacture: United States 


Assembly Required: NoInstallation Required: No
Additional Parts Required: No 


Product Warranty: 90 days 


EISA Compliant: No 

About the Manufacturer

In its early years, Mi-T-M Corporation began manufacturing cold-water pressure washers for the paint industry. The paint contractors who used the pressure washers were so impressed with the power they provided, they would call up it's founder A.J. Spiegel and tell him he made one "MighTy" machine. The first unit A.J. built was 1000 (Roman numeral "M") PSI, hence the name Mi-T-M Corporation came into being. The quality and durability of the first cold water pressure washers earned a reputation for Mi-T-M which helped launch the company to service the largest paint companies, rental yards, heavy equipment, and farm implement companies in the country. As the customer base grew, so did the product offering. Today the company offers a wide variety of cold/ hot water pressure washers, air compressors, and accessories for industrial or personal use.

With the growing product line, it has been necessary for Mi-T-M Corporation to assemble the highest quality manufacturing equipment in the industry. Their state of the art Laser cutting equipment offers computer programmed accuracy and the seven stage powder coating system ensures an extremely durable paint job that will last the lifetime of the products. All products are hand tested before they leave the factory to ensure their quality.

The Mi-T-M name has proven itself through years of producing quality products all deserving of the Mighty M name.

Don’t see what you need? Give us a call, and we will custom order you any Mi-T-M product in no time!

Mi-T-M 4000 PSI Pressure Washer Chemical Injector

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When you buy a Mi-T-M 4000 PSI Pressure Washer Chemical Injector 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 Mi-T-M Part #: AW-8400-0021 here. If you have any questions about your purchase or any other Pressure Washer Attachments product for sale our customer service representatives are available to help.Whether you just want to buy a Mi-T-M 4000 PSI Pressure Washer Chemical Injector or shop for your entire home, Wayfair has a zillion things home.

Mi-T-M 4000 PSI Pressure Washer Chemical Injector

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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.

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Average Overall Rating:
(based on 1 reviews)

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Great product.

 from Diamondhead,MS– Verified Buyer

Quick disconnect couplings were backwards compared to existing Simpson hoses/guns. Had to permanently attach injector to unit and change pressure hose to 2 male ends. Female end of injector is on the wrong end.

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4000 PSI Pressure Washer Chemical Injector is also sometimes listed under the following manufacturer numbers: AW-8400-0021