Reduce cleaning time while removing investment from castings. The wash gun uses water and compressed air (1/4") at 70 -200 PSI. Connects to a sink faucet with 3/4" hose connection. Set Includes: Trigger air valve, hose protector and rubber hand grips. ** We are an authorized distributor of the manufacturers of all products in our EBay store. All products sold are only brand new, in original packaging with original manufacturer warranty. Our products are never used, reconditioned, or rebuilt. ** Our goal is to make sure you are a happy buyer and have a pleasant shopping experience with us. Please email us before leaving any less than 5 Stars ratings, negative feedback or open any dispute. We understand the concerns and frustrations you might have, and will do our best to resolve the issues.