4" x 3-1/2" Brass Nipple size_1-1/2" material: Black Malleable Iron connection:

material:   Black Malleable Iron connection:   Threaded Thread Type:   Male & Female Features:   Meets or exceeds all applicable ASTM and ANSI standards   100% pressure tested before leaving the factory   Schedule 80 - 300 psi

accurate threads are machined that comply with the precise standards developed by the Amerian Society of Mechanical Engineers (ASME) and published as an American National Standard

or guide for various pipe

When using insulated pipe

4 Class 125   NPT threads on fittings conform to ASME B1

4" x 3-1/2" Brass Nipple size_1-1/2" material: Black Malleable Iron connection:material: Brass connection: Threaded Thread Type: Male Features: Lead Free Meets or exceeds all ANSI standards Stocked from 1 8" through 4" diameters Stocked from 1 8" through 4" diameters