... nitrile seal): -40-- +250 F dry break couplings (Universal Series, Aro, Tru-Flate, Industrial)FEATURES: The 1/ ... by matching like series couplers and nipples, the universal coupler permits multiple series nipples to mate with ... , steam and oil 3) Double shut off couplings are used extensively when it is important to ... loss to the minimum dry break couplings (Universal Series, Aro, Tru-Flate, Industrial)