12 products
3/8" Black Iron Union - Fittings N' Valves
3/8" Black Iron Union
Sale price$4.61
1/2" Black Iron Union - Fittings N' Valves
1/2" Black Iron Union
Sale price$4.70
3/4" Black Iron Union - Fittings N' Valves
3/4" Black Iron Union
Sale price$5.97
1/4" Black Iron Union - Fittings N' Valves
1/4" Black Iron Union
Sale price$6.31
1/8" Black Iron Union - Fittings N' Valves
1/8" Black Iron Union
Sale price$7.25
1" Black Iron Union - Fittings N' Valves
1" Black Iron Union
Sale price$7.49
1-1/4" Black Iron Union - Fittings N' Valves
1-1/4" Black Iron Union
Sale price$10.97
1-1/2" Black Iron Union - Fittings N' Valves
1-1/2" Black Iron Union
Sale price$12.97
2" Black Iron Union - Fittings N' Valves
2" Black Iron Union
Sale price$19.97
2-1/2" Black Iron Union - Fittings N' Valves
2-1/2" Black Iron Union
Sale price$40.67
3" Black Iron Union - Fittings N' Valves
3" Black Iron Union
Sale price$52.97
6" Black Iron Union - Fittings N' Valves
4" Black Iron Union
Sale price$122.07
What Is a Union Used For?

A union joins two pipes with a threaded ring nut so the connection can be broken later without cutting or rotating the pipe. Essential for serviceable equipment.

This collection shows imported black iron unions.