The AquascapePRO® Check Valve Assembly is needed to connect your pump to the pond plumbing. Aquascape’s dual union check valve has a removable connection underneath the check valve which allows you to disconnect the pump and plumbing without draining the water in your BioFalls® Filter (Filter not included). Part Number 48026 Check valve includes multiple fittings for adaptability to any sized pipe, up to 3 inches. Technical Specifications Check Valve Assembly for Classic Skimmer fits the following pumps: All AquaSurge™ Tsurumi 3PL, 5PL, 8PN AquascapePRO® 3000, 4500, 7500 Discharge 1.5" mpt and 2" fpt Check Valve Assembly Grande 2" fits the following pumps: All AquaSurge™ Tsurumi 3PL, 5PL, 8PN Discharge 1.5" mpt and 2" fpt Check Valve Assembly 3" fits the following pumps: Tsurumi 12PN Aquascape PRO® 10,000 Discharge 3" fpt
