3/8″ Chemical Injector With Hose & Filter

Injector Assembly for Pressure Washers

The WJ85.400.005HT Chemical Injector is designed to introduce detergents and cleaning solutions into your pressure washer stream with consistent, reliable performance. Featuring a 3/8″ connection, this injector installs easily into most pressure washer systems and allows downstream chemical application at safe, reduced pressure—perfect for applying soaps, detergents, and cleaning agents without damaging pumps or internal components.

Equipped with a durable suction hose and built-in filter, the injector draws chemicals smoothly while preventing debris from entering the system. Ideal for both residential and commercial cleaning tasks, this chemical injector is a must-have accessory for anyone who needs efficient, controlled detergent application through their WetJet pressure washer setup.