These quick connect couplers have double shut-off poppet valves and are interchangeable with other quick disconnects complying with ISO 7241 Series B. These general purpose quick couplings are available in a wide range of sizes and materials to be versatile for use with several fluids, including high temperature steam. Parker's 60 Series is multi-purpose for a variety of applications and pressures up to 5000 psi. Steam version couplers are brass with double interface O-rings and stainless steel locking balls. Seal material is Ethylene Propylene and the 3/8 in size has a grip-ring sleeve for easy operation when wearing gloves.