Prevent street sewer waste from backflowing into basements or low areas with the ABS 4 in. Backwater Valve. The backwater valve is lightweight and easy to install. The quick action flapper allows unrestricted uni-directional flow. Elastomeric gasket in the flapper ensures a watertight seal. Flapper can be easily removed and replaced if required.

Prevent street sewer waste from backflowing into basements or low areas with the backwater valve. Valve is lightweight and easy to install. Horizontal installation required; arrows on valve hub point in the direction of water flow.

This 4" PVC backwater valve is lightweight and easy to install. It is designed to protect low areas or basements from the backflow of waste from the street sewers. It is a cost-effective and chemically resistant alternative to cast iron valves.

The NDS gravity flow backwater valve is designed to protect low areas or basements from the backflow of waste from the street sewers.

Prevent street sewer waste from backflowing into basements or low areas with the ABS 4 in. Backwater Valve. The backwater valve is lightweight and easy to install. The quick action flapper allows unrestricted uni-directional flow. Elastomeric gasket in the flapper ensures a watertight seal. Flapper can be easily removed and replaced if required.

The NDS gravity flow Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. It is available in 2", 3", 4" and 6" sizes PVC material.

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The NDS gravity flow Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. It is available in 2", 3", 4" and 6" sizes, PVC material. It is a cost-effective and chemically resistant alternative to cast iron valves.

The NDS gravity flow Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. It is available in 2", 3", 4" and 6" sizes, PVC material. It is a cost-effective and a chemically resistant alternative to cast iron valves.