Mastercool 90262 Straight manual shut-off valve set of 3 STANDARDPRESSURE HOSES WITH AUTOMATIC SHUT-OFF VALVE FITTINGS 1/4" SAE Standard Hoses, Working Pressure 52 BAR, Burst 210 BAR. Mastercool uses only GRADE 5 HOSE with a selection of Standard and Bylon Barrier for high pressure applications. Knurled brass nuts make finger tightening easy. Crimped with 8 segment dies for secure fit and maximum durability. Hoses are available in sets and a variety of lengths to meet all EPA, SAE, and UL requirements for containment of refrigerant. Mastercool 90262 Straight manual shut-off valve set of 3 Ball valve design with flexible hose controls refrigerant with a quarter turn of the valve handle. Meets SAE, EPA and UL requirements for containment of refrigerant. Can be operated with one hand. Screws onto charging hose end.