Flexible Metal Hose Assembly Hose Inside Dia 1/4 in Hose Length 12 in Hose Tube Material 321 Stainless Steel Hose Cover Material 304 Stainless Steel Max Working Pressure @ 70 F 1 800 psi Temp Range 32 Degrees to 850 Degrees F Dynamic Min Bend Radius (In.) 4.5 in Hose Fitting A Material Carbon Steel Hose Fitting B Material Malleable Iron Hose Fitting A Type MNPT Hose Fitting B Type FNPT Hose Fitting A Size 1/4 in Hose Fitting B Size 1/4 in