The Superior Pump 99509 ABS check valve is designed to fit an inlet size of 1-1/2 in. MPT. Will fit an outlet size of either 1-1/4 in. Barb or 1-1/2
DEWALT 1-1/4 in. or 1-1/2 in. Full-Flow Sump Pump Check Valve DXWPCV69512 - The Home Depot
Superior Pump Check Valve - 99509
NEW Superior 99509 1-1/2 in MPT x 1-1/4 in Barb or 1-1/2 in Slip ABS Check Valve 725113995097
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1-1/4 MIP x Barb Insert ABS Check Valve at Menards®
SUPERIOR PUMP 99509/SC150B 1.5 Pump Check Valve, 1-1/2, Black : Everything Else
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NEW Superior 99509 1-1/2 in MPT x 1-1/4 in Barb or 1-1/2 in Slip ABS Check Valve 725113995097