Mastercool Full Flow 3/8" Charging Black Hose 180 cm - black (94172) 
Product Description
94172: 72″ 3/8″ SAE Replacement Black Hose without Ball 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.