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The RECTORSEAL CV01.25IN is a 1-1/4 inch in-line check valve designed for sump pump discharge lines. Constructed from sonic-welded ABS thermoplastic, it uses a rubber flapper to create a positive seal that prevents backflow when the pump cycles off. The full-flow design minimizes pressure drop across the valve, keeping discharge performance consistent. Supplied with rubber coupling sleeves and stainless steel clamps, the CV01.25IN connects to both PVC and ABS discharge pipe without additional adapters. Plumbers and sump pump installers use this valve as a direct in-line component in residential and light commercial drainage systems.
This check valve is suited for residential sump pit applications where a reliable backflow preventer is required on the vertical or horizontal discharge run. The included rubber sleeves allow connection to standard 1-1/4 inch PVC or ABS pipe, making it a practical choice for new installations and service replacements alike. Its compact, in-line profile fits in tight pit enclosures and mechanical rooms where space is limited.
Designed as an OEM-style replacement or new-install check valve for residential sump pump discharge lines using 1-1/4 inch PVC or ABS pipe.
Installation should be performed by a licensed plumber or qualified sump pump technician. Disconnect power to the sump pump before beginning any work on the discharge line. Ensure pipe ends are clean and cut square before seating the rubber coupling sleeves, and torque the stainless steel clamps evenly to achieve a leak-free connection. Follow applicable local plumbing codes and IPC guidelines for check valve placement and orientation on the discharge assembly.
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