Liquid Propane Hose Hose Inside Dia 2 in Hose Outside Dia 2 3/4 in Hose Length 20 ft Hose Tube Material Nitrile Hose Cover Material Nitrile Hose Color Black Max Working Pressure @ 70 F 350 psi Vacuum Rating Not Rated Temp Range -40 Degrees to 140 Degrees F Standards UL 21 APPROVED Hose Configuration Coupled Assembly Hose Fitting A Material Aluminum Hose Fitting B Material Aluminum Hose Fitting A Type Cam and Groove C Hose Fitting B Type Cam and Groove E