The PSU 1020 features 1-1/4″ or 1-1/2″ combination adapters and the most durable check valve flapper in the industry. This is one of the world’s most reliable sump pump check valves.
Product Features:
- 1-1/4″ or 1-1/2″ combination adapters
- The most durable flapper in the industry
- All stainless steel clamps
- All stainless steel fasteners
- Strong and durable ABS body
- Fits 1-1/4″ or 1-1/2″ black, galvanized or DWV Schedule 40 pipe
- Size: 1-1/4″ or 1-1/2″
- Max. Operating Pressure: 45 PSI
- Material: ABS (Body), PVC (Adapters) and 301 Stainless Steel (Clamps and Fasteners)
- Application: Sump Pumps









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