Sierra All Clear PVC Tubing Polyester 1/2"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.:; 1/2" or 12.7mm; Wt. "C": 11; O.D.: ; 23/32" or 18.3mm; 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;