Sierra All Clear PVC Tubing Polyester 3/8"Sierra All Clear PVC Tubing Polyester 1-1/2" has polyester braid reinforcement and 250 PSI burst pressure and a clear heavy wall FDA formula vinyl. I.D.:; 3/8" or 9.5mm; Wt. "C": 7; O.D.: ; 9/16" or 14.3mm; Burst Pressure 70: 250#; Application: Primarily used for pressurized water system supply (hot or cold), drain lines (sink, shower, icebox); This hose is also used for wash down pump connections and head intake;