In BusinessSince 1987
CA, FL, GA, ID, IA, IN, MA, MD, MI, MO, NC, ND, NE, NY, OH, TX, WI
Mastercool manufactures a complete line of shut-off valves for containment of refrigerant. EPA requires shut-off valves within 12 inches of the charging hose ends to prevent unnecessary venting of refrigerant. Using shut-off valves is much safer than allowing refrigerant to blow out during service.