LP Gas High Pressure Hose. Thermoplastic high pressure hose assembly, working pressure of 350 psi with 1700 psi burst rating. UL listed assembly, CSA approved hose. Hang tagged for store display. 1/4 inch I.D. Hose, 3/8 inch FPT x 3/8 inch Female Flare Swivel. 144 inches L.