Couplings

4 inch NPT mechant steel full coupling, Class 150, Internal Thread X Internal Thread

4 inch NPT weld on mechant steel half coupling, Class 150, Internal Thread X Butt Weld

4 inch class 3000 forged carbon steel Half Couplings

4 inch class 3000 forged carbon steel socket weld straight coupling

4 inch class 3000 forged carbon steel socket weld straight coupling - Made In USA

4 inch class 3000 forged carbon steel socket weld half coupling - socket weld X butt weld

4 inch class 3000 forged carbon steel socket weld half coupling - socket weld X butt weld - Made In USA

4 inch NPT 304 stainless steel class 3000 full coupling

4 inch NPT class 150 banded galvanized malleable iron full coupling

4 inch NPT class 150 banded malleable iron full coupling

4 inch NPT carbon steel class 3000 full coupling

4 inch NPT carbon steel class 3000 full coupling

4 inch NPT class 3000 forged carbon steel Half Coupling - Made in USA

4 inch NPT class 150 full coupling Cast 304 Stainless Steel

4 inch NPT class 150 full coupling Cast 316 Stainless Steel

4 inch NPT galvanized merchant full coupling