- 36" Black R134a Charging Hose w/Shut-Off Valve
The Mastercool 84366 is a 36" Black R134a Charging Hose w/Shut-Off Valve. The Mastercool 84365 is a 36" Yellow R134a Hose w/o Shut-Off Valve. 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.