Features and Benefits: . 72" Yellow hose with shut off valve. 1/2" ACME - F. Meets J2196 specifications and are UL recognized. Tested for working pressure of 600 PSI and burst pressure of 3,000 PSI Mastercool charging hoses stand the test of time. Nylon barrier models meet EPA, SAE and UL standards for containment of refrigerant. Knurled brass nuts make finger tightening easy. Crimped with 8 segment dies for secure fit and maximum durability.