3/8" x 11" XH Black Pipe Nipple Schedule 80 size_1-1/2" x 4-1/2" or COPPER pipe in any

or COPPER pipe in any combination

material:   Galvanized Steel 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

Hydronic heating with glycol

UPC/IPC by IAPMO

1-1/2" Style 90 Water Service Compression Dresser Coupling for Steel Pipe (Seal Only)

3/8" x 11" XH Black Pipe Nipple Schedule 80 size_1-1/2" x 4-1/2" or COPPER pipe in anymaterial: Black Steel, Extra Heavy, Schedule 80 connection: Threaded Thread Type: Male Features: Meets or exceeds all applicable ASTM and ANSI standards Made in The U. S. A.