Quickly and easily connects to any 34 male pipe threaded MPT outdoor faucet, garden hose or component Safely prevents backward flow of water from a drip irrigation system into your potableclean drinking water supply Stainless steel 150 mesh filter catches debris to help keep system functioning properly Simply thread into place take care fitting is fully tightened so rubber gasket can correctly seal assuring leakproof performance Constructed of highly durable UV and chemicalresistant materials to assure long life