... which contaminates expensive refrigerants3 Rubber layer for permeation, braid for strength, and outer cover for protection1 Double barrier protectionMoisture barrier ... '', 96'', 10', 12', 25', 50', 75', 100')Remark1 For standard charging hose, W.P./B.P.: 600psi-3000psi is ... and lower, hoses longer than 8’ not recommended for evacuation 1/4'' SAE Charging Hoses with valve For All Refrigerants (PR3002)