Mastercool uses only (GRADE 5 HOSE) with a selection of Standard and Nylon 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.
Auto shut-off valves automatically retain refrigerant in the service hose when they are removed from the system, meet EPA, SAE, and UL standards for containment of refrigerant.
Nylon Barrier Hoses, Working Pressure 800 PSI, Burst 4000 PSI