Chemical Injectors
Find the right chemical injector for your pressure washer and applications. This category includes downstream and upstream injectors, bypass/remote rinse kits, and essential accessories.
Use the quick selector and setup checklist below to size an injector to your machine, improve draw performance, and protect equipment.
Featured Categories
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Suttner ST-60 Chemical Injector
From $25.47 -
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Foam Cannon Foamer Injector
$149.97 -
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Chemical Injectors FAQ's
Is hot water okay with chemical injectors?
Only if temperatures and chemistry are within the injector’s and pump’s material ratings. Check product specs and stay within listed limits.
How can I stop soap and switch to rinse quickly?
Use a bypass or remote‑rinse kit to switch flow paths, or swap to a high‑pressure tip to disable draw on downstream systems.
Does hose length or elevation affect soap draw?
Yes. Extra hose length, height, restrictions, or small nozzles add backpressure that can reduce or stop draw. Keep runs efficient and components clean for consistent performance.
Can I run sodium hypochlorite (bleach) through my injector?
Yes with downstream injection and compatible materials. Avoid sending corrosive mixes through the pump; rinse the injector, gun, and hoses with fresh water after use.
How do I size a chemical injector to my machine?
Choose an injector with a GPM/PSI rating that meets or slightly exceeds your machine’s output. If you’re between sizes, follow the manufacturer’s guidance for your actual flow and consider adjustable orifice options.
My injector won’t pull chemical—what should I check first?
Confirm you’re using a low‑pressure nozzle, verify the injector matches your GPM/PSI, clean or replace the strainer, shorten or straighten the pickup hose, and inspect the check ball/spring for debris or wear.
What’s the difference between downstream and upstream injection?
Downstream injectors add chemical after the pump and keep harsh solutions out of pump internals. Upstream injectors meter chemical before the pump for compatible, pump-safe products when high‑pressure application is desired.
