4" x 8" Black Pipe Nipple Soil Pipe Adapters The threads have an accurate

The threads have an accurate form

and Vent Pipe

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

material:   Black Steel connection:   Threaded Thread Type:   Male Features:   Meets or exceeds all applicable ASTM and ANSI standards   Made in The U

All copper with brass fittings

4" x 8" Black Pipe Nipple Soil Pipe Adapters The threads have an accuratematerial: Black Steel connection: Threaded Thread Type: Male Features: Meets or exceeds all applicable ASTM and ANSI standards Made in The U. S. A.