Interlocked Metal Hose Interlocked Metal Hose Type Smoothbore Hose Inside Dia 4 in Hose Outside Dia 4 3/16 in Hose Tube Material 304 Stainless Steel Liner Material 304 Stainless Steel Hose Length 10 ft Temp Range -325 Degrees to 1200 Degrees F Bend Radius 18 in Hose Fitting A Material 304 Stainless Steel Hose Fitting B Material 304 Stainless Steel Hose Fitting A Type MNPT Hose Fitting B Type MNPT Hose Fitting A Size 4 in Hose Fitting B Size 4 in