4 Backwater Valve NDS
4 Backwater Valve NDS
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Compatibility Notice
Compatibility Notice
It is the buyer’s responsibility to confirm product compatibility with their system, application, and any local code requirements prior to purchase. Buyers should verify model numbers, specifications, sizing, and pressure ratings before ordering.
If you are unsure, you may contact us before purchasing and we will help confirm compatibility.
To initiate a return, customers must contact us before sending the item back. Unauthorized returns may be refused.
Return Policy
Return Policy
We accept returns within 14 days from your delivery date.
All returns are subject to a restocking fee. The restocking fee varies by product category and will be deducted from the refund amount.
Items must be unused, uninstalled, and returned in their original packaging. Products that show signs of use, installation, or damage are not eligible for return.
Return shipping costs are the responsibility of the customer unless the item arrives defective or incorrect. Original shipping charges are non-refundable.
To initiate a return, customers must contact us before sending the item back. Unauthorized returns may be refused.
If you’re unsure about fit, compatibility, or application, contact us prior to purchasing.
Description
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. Threaded access cap is designed for hand tightening. Access cap neoprene gasket provides a positive seal. Valve hub outlets fi t 2", 3", 4" or 6" DWV pipe and may be adapted to 2", 3", 4" or 6" sewer and drain pipe with NDS DWV to Sewer & Drain Adapters. Horizontal installation required, with arrows on top of the valve hub pointing in the direction of the flow of water. Access riser with cover offers a simple, economical access to the valve for inspection and maintenance. The riser may be cut to the desired length. The NDS gravity flow Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. It is a cost-effective and a chemically resistant alternative to cast iron valves.
