Numhew 4 in 3 Port PVC White Backwater Valve

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4 in inlet and outlet with flange connections, fits common drain lines for secure backflow control
Three port design, helps prevent reverse sewage and rainwater flow for reliable drainage protection
PVC body with white exterior finish, resists corrosion and supports long term use

Stepper number input field with increment and decrement buttons

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Protect plumbing from sewage and rainwater backup with this 4 in PVC backwater valve. The 3 port design helps control reverse flow automatically, while corrosion resistant PVC supports reliable drainage performance. Ideal for domestic, commercial, and industrial systems, it installs easily on 4 in flange connections for dependable backflow prevention.

4 in inlet and outlet with flange connections, fits common drain lines for secure backflow control
Three port design, helps prevent reverse sewage and rainwater flow for reliable drainage protection
PVC body with white exterior finish, resists corrosion and supports long term use
Automatic operation, closes when flow reverses or stops, no manual intervention needed
Easy installation, simple design reduces setup time and maintenance demands
Overall size 10.63 x 7.28 x 7.09 in, compact fit for drainage systems
Suitable for domestic, commercial, and industrial use, supports irrigation, construction, water treatment, and pools

Numhew 4 in 3 Port PVC White Backwater Valve

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