NST coupling MATERIAL: ALUMINUM, BRASS SIZE: 1 1/2"X 1 11/16" (1 3/4" , 1 13/16" ) 2 1/2"X 2 11/16"(2 3/4" .....)

NST coupling

MATERIAL: ALUMINUM, BRASSSIZE: 1 1/2"X 1 11/16" 1 1/2"X 1 3/4" 1 1/2"X 1 13/16"            2 1/2"X 2 11/16" 2 1/2"X 2 3/4" 2 1/2"X 2 13/16"