Sump Pump Check Valve 1-1/4 or 1-1/2 slip x slip

Zoeller 1-1/2-in Black Rubber Threaded Inline Check Valve for Vertical Installations - Water Pump Accessory in the Water Pump Accessories department at

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

Drainage Industries 1-1/4 In. ABS In-Line Sump Pump Check Valve

The Little Giant CV-114/112 check valve model number 599059 is full flow designed. The check valve has a slip x slip connection. This check valve is

CV-114/112 1-1/4 in. Sump Pump Check Valve

Zoeller Plastic Check Valve in the Water Pump Accessories department at

Superior Pump Check Valve - 99509

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

Zoeller Plastic Check Valve in the Water Pump Accessories department at

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

RELIABILT PVC Sch 40 1-1/4-in PVC Spring Loaded Check Valve in the Check Valves department at

Zoeller, 1-1/4 x 1-1/2 in, Slip, Check Valve, PVC Body, Mfr.# 30-0181

ZOSCV114112

1-1/2 Spigot x 1-1/2 Spigot Sump Pump Check Valve

Little Giant 599059 Check Valve 1-1/4 & 1-1/2