... pressure,4000 psi busrt,hi-performances freon charging hose manufacture you can trust. 1/4'' ... 3/8'' hose, allows techs to pull a faster vacuum3 Faster refrigerant transfer and faster charging ... -3000psi is available2 For 3/8'', 1/2'', 5/8'' charging hose, W.P./B.P ... hose, 36'' hose will pull to 25 Microns and lower, hoses longer than 8’ not recommended for evacuation 3/16' SAEJ2196 FREON CHARGING HOSE ...