Full flow valve * Uses standard gasket and valve opener * UL recognized assemblies (File SA9737) * Recommended for R-410A * 1/4" RYB PLUS II hoses are rated for 4000 psi (276 bar) minimum burst and 800 psi (55 bar) maximum working pressure and an operating temperature of -20deg to 180degF (-28.8deg to 82.2degC)