The container label and SDS will explain the contents of the material and the specific precautions related to it

38"(W) 26"(H) 24"(L) MOUNTING PATTERN (M) (N)  14

See Part # 25

#4 - This is the best size for most products that can be sprayed

Spray gun safety lock

W1.1L Bolt-ON Unloader w/ Injector 7217-10828 The container label and SDSFEATURES: Built in chemical injector includes variable metering adjustment Compact design features forged brass body and hardware Adjustable unloader valve with internal bypass Versatile mounts in seconds to either side of pump manifold Reduces cost eliminates need for fittings and bypass hose SPECIFICATIONS: Maximum Pressure: 1600 PSI Maximum Temperature: 165 F Maximum Flow: 4 GPM Inlet Port: 1 2" FPT Outlet Port: 3 8" MPT Chemical Inlet: 1 4"