Couplers couplers-11/4 X 12 mm Hose3/8X12 mm Hosecouplers-23/8 X 3/8 F.Thread3/8 X 3/8 F.thread with Check Valvecouplers-33/8 X 3/8 Male Threadcouplers-43/8 X 12 mm SS-304couplers-53/4 X 3/4 Male thread 3/4 X 3/4 Male thread with Check Valvecouplers-63/4 X 3/4 Male thread 3/4 X 3/4 Male thread with Check Valvecouplers-73/4 X 3/4 F.thread 3/4 X 3/4 F.thread with Check Valve
