The Delux Super Soaker Downstream Injector is a supercharged detergent mixing valve. The standard check valve that is found on most downstream injectors has been upgraded to a high-performance stainless steel check valve to improve durability. The super-sized check valve also allows more soap to be pulled into the stream to apply soap at higher mix ratios. It will resist strong acids and caustics. Which makes it a great choice for cleaning with sodium hypochlorite. It is rated for up to 8 GPM, @ 5000 psi.