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APS PartsSKU: ACI002

Downstream Fixed 20% 1 – 2 GPM Chemical Draw Injector Assy W/QCs

$36.95

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Overview

This is a downstream chemical injector with a fixed 20% dilution ratio, sized for pressure washers flowing 1–2 GPM and rated to 4500 PSI maximum. It draws soap or chemical into the water stream after the pump — quick-connect it between the pump outlet and your 3/8" high-pressure hose — so chemical never runs through the pump. That protects the pump and lets you run a wider range of chemicals than upstream injection allows. The assembly includes 4 feet of chemical hose with a strainer, and it snaps on and off with quick connects. To draw chemical, switch to a low-pressure soap tip: a black short-range tip or a blue long-range tip, size 40.0. If it arrives plumbed backwards for your setup, just swap the fittings so the flow arrow points downstream.

What's included

  • Fixed 20% dilution ratio for consistent chemical draw
  • Rated 4500 PSI maximum at 1–2 GPM flow
  • Downstream injection — chemical never runs through the pump, allowing a wider choice of chemicals
  • Quick-connect fittings snap on between the pump and your 3/8" high-pressure hose
  • Includes 4 feet of chemical hose with strainer
  • Draws soap through a size 40.0 low-pressure tip (black short-range or blue long-range)
  • Reversible fittings — flip them so the flow arrow points downstream if it arrives plumbed backwards

Specifications

Type
Downstream chemical draw injector
Dilution Ratio
Fixed 20%
Flow Range
1–2 GPM
Max Pressure
4500 PSI
Connection
Quick-connect, installs after the pump before the 3/8" high-pressure hose
Hose Length
4 ft chemical hose with strainer
Soap Tip
Size 40.0 — black short-range or blue long-range

Frequently asked questions

It fits machines flowing 1–2 GPM at up to 4500 PSI. It quick-connects downstream of the pump, before your 3/8" high-pressure hose, so it works with any washer in that flow range regardless of brand — flow rate is what matters, since an injector outside its GPM range won't draw chemical properly.

Possibly — the injector may arrive plumbed backwards for your setup, and the fix is to swap the fittings so the flow-rate arrow points downstream, away from your machine. Also confirm you're using a low-pressure soap tip (black short-range or blue long-range, size 40.0); injectors only draw at low pressure.

Use a size 40.0 low-pressure soap tip — a black tip for short range or a blue tip for long range. Downstream injectors only draw chemical when the pressure drops, so soap won't flow through your standard high-pressure nozzles.

Because the chemical never passes through the pump, you can run a wider choice of chemicals without damaging pump internals. The injector introduces chemical after the pump, and the included 4-foot hose with strainer draws straight from your chemical container.

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