Downstream Chemical Injector Kit for Pressure Washer, Fixed Soap Injector with 3/8" Quick Connect, 3–5 GPM Flow Rate
Downstream Chemical Injector Kit for Pressure Washer, Fixed Soap Injector with 3/8" Quick Connect, 3–5 GPM Flow Rate
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PROWASH

Downstream Chemical Injector Kit for Pressure Washer, Fixed Soap Injector with 3/8" Quick Connect, 3–5 GPM Flow Rate

Downstream Chemical Injector Kit for Pressure Washer, Fixed Soap Injector with 3/8" Quick Connect, 3–5 GPM Flow RateDownstream Chemical Injector Kit for Pressure Washer Fixed Soap Injector with 3 8 Quick Connect 3 5 GPM Flow RateDownstream Chemical Injector Kit for Pressure Washer Fixed Soap Injector with 3 8 Quick Connect 5 8 GPM Flow Rate
Compatible Models3-5GPM

Key item features

  • Efficient Cleaning: Utilizes a siphon principle for detergent injection after the pump, preventing internal corrosion and enabling safe, even application for various surfaces like cars, driveways, and roofs.
  • Secure Connection: Features 3/8" quick connect plug and socket for seamless integration between the pressure washer pump and hose, ensuring a leak-free setup and preventing chemical backflow.
  • Durable Construction: Made from high-quality brass and stainless steel, this injector withstands up to 3200 PSI and 35 GPM flow, resisting corrosion from harsh cleaning agents like bleach and degreasers.
  • Proper Installation: Requires aligning the arrow on the injector body with the water flow direction to ensure proper chemical suction and optimal cleaning performance.
  • Complete Kit: Includes a brass chemical injector, 3/8" QC adapters, a 10 ft clear siphon hose with filter, a black soap nozzle, and two rolls of Teflon tape for immediate use.
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Current price is $18.99
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4.565789473684211 stars out of 5, based on 76 seller reviews(4.6)
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Customer ratings & reviews

3.8 out of 5 stars
stars
18 ratings8 reviews
How item rating is calculated
  1. 5 stars61% (11)
  2. 4 stars6% (1)
  3. 3 stars11% (2)
  4. 2 stars0% (0)
  5. 1 star22% (4)
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Showing 1-3 of 8 reviews

May 6, 2026
Tom
Top Reviewer
Sold byPROWASHDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Simple kit for adding chemicals and additives upstream through your pressure washer to eliviate damage to the internals of your pressure washer pump, not a super fancy kit, but it gets the job done for cheap.

Incentivized Review
Helpful?0YWMG1DC8YPA17447851816
Jun 30, 2026
Petrus
Item details
Compatible models: 3-5GPM
Sold byPROWASHDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Downstream injector

Looks good, Good Quality and the delivery was on time

Incentivized Review
Helpful?0YWMG1DC8YPA17447851816
Jun 30, 2026
Karla
Item details
Compatible models: 3-5GPM
Sold byPROWASHDelivered byWalmart
5 out of 5 stars review

Verified Purchase

It works well and does the job

Incentivized Review
Helpful?0YWMG1DC8YPA17447851816