Chemical injectors pull detergent, soap, or cleaning solution into your water stream so you can apply chemical through your pressure washer. Downstream injectors sit after the pump for safe low-pressure application, while high-draw and adjustable models let you dial in the exact draw rate for your GPM. Available at Sun Brite Supply in Gaithersburg, MD.

Frequently Asked Questions

What is the difference between a downstream and upstream injector?

A downstream injector is installed after the pump and draws chemical only at low pressure (when a soap tip is installed), protecting the pump from harsh chemicals. An upstream injector sits before the pump and is used only with pump-safe solutions.

Why won't my injector draw chemical?

The most common cause is the wrong nozzle — an injector only siphons under low pressure, so you must install a soap/black tip. Also check for a clogged filter, a cracked pickup hose, or an injector sized wrong for your GPM.

How do I pick the right injector for my machine?

Match the injector to your pump's GPM. Too small restricts flow; too large will not draw properly. Tell us your machine's GPM and we will point you to the correct model.

Need help? Call us at (301) 519-9274 — over 30 years of hands-on pressure washing experience.

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All Injectors · Soft Wash Equipment · Nozzles