Sierra All Clear PVC Tubing Polyester 3/4" 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.:; 3/4" or 19.1mm; Wt. "C": 17; O.D.: ; 31/32" or 24.6mm; 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;