Twin Line Welding Hose Hose Inside Dia 1/4 in Hose Outside Dia 1/2 in Hose Length 50 ft Hose Color Green Red Hose Tube Material Synthetic Rubber Hose Cover Material Nitrile Hose Reinforcement Type Spiral Hose Reinforcement Material Fiber Burst Pressure 800 psi Max Working Pressure @ 70 F 200 psi Temp Range -40 Degrees to 120 Degrees F Standards ARPM IP-7 CGA E-1 Safety Factor 4 1 Hose Configuration Coupled Assembly Hose Grade T Hose Fitting A Material Brass