These high flow couplings feature automatic shut-off valves which stop flow and eliminate the need for pinch clamps, stainless steel connectors, or fittings. They allow rapid disconnect and reconnect without the need for tools. Valved couplings stop fluid flow at the point of connection, reducing spills and related safety issues. Couplings feature an audible click when engaged, ensuring the user of a secure connection. Constructed of polypropylene with EPDM o-rings and 316 stainless steel valve spring. Vacuum to 120 psi, 8.3 bar.*High flow couplings available - please call for details