Midland Metal 65781API API Coupling, 4 in FPT x 4 in FPT, Steel, Black, 3000 lb

API Coupling, Connection Size 1: 4 in, Connection Type 1: FPT, Connection Size 2: 4 in, Connection Type 2: FPT, Steel, Black, 4-8 Thread, Pressure Class: 3000 lb, For Use With: SCH 80 and SCH 160 Nipple and Pipe, 5.2 in Dia x 4-1/2 in L