The Delux Super Soaker Downstream Injector is a super charged 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.