Pipe; Applicable Standard FM, NSF61, UL; Nominal Pipe Size 4"; Schedule 40 S; Thickness 0.237"; Length 21'; End Connection Threaded x Coupled; Material Steel; Material Specification ASTM A53; Finish Hot Dipped Galvanized; Application Mechanical, Low Pressure, Steam Lines, Water Lines, Gas Lines, Air Lines; Weight 10.8 Lb/Ft; Inner Diameter 4.026"; Outer Diameter 4.5"; Yield Strength 30000 PSI; Tensile Strength 48000 PSI