99509 1-1/2 in. MPT x 1-1/4 in. Barb or 1-1/2 in. Slip ABS Check Valve

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

Everbilt 1-1/4 to 1-1/2 in. ABS In-Line Sump Pump Check Valve THD1020 - The Home Depot

Watts Anka 1.5 in. Foot Valve AFV112 - The Home Depot

Female Pipe Thread - Check Valves - Valves - The Home Depot

Everbilt 2 in. PVC FIP x FIP Sch. 40 Check Valve 101-108EB - The Home Depot

HOMEWERKS 1-1/2 in. FIP x 1-1/2 in. FIP Lead Free Brass Spring Check Valve 241-2-112-112 - The Home Depot

20 - Valves - Plumbing - The Home Depot

1-1/4 MIP x Barb Insert ABS Check Valve at Menards®

DEWALT 1-1/4 in. or 1-1/2 in. Full-Flow Sump Pump Check Valve DXWPCV69512 - The Home Depot

SUPERIOR PUMP 99509/SC150B 1.5 Pump Check Valve, 1-1/2, Black : Everything Else

Slip-Joint - Check Valves - Valves - The Home Depot

ABS-Backwater Valve - 1 1/2 - Hub - Black from IPEX

Little Giant CV-SE 2 in. ABS Sewage Pump Check Valve 940021 - The Home Depot

Watts Anka 1.5 in. Foot Valve AFV112 - The Home Depot

Jackel Sump Check Valve (Model: ECV-275)