Oatey 4 in. PVC Backwater Valve
Key features
- •1-1/2-Inch or 2-Inch, 6-Inch x 6-Inch Utility Drain Ò Fits over 1 1/2-Inch Sch. 40 DWV pipe or into 2-Inch coupling
- •Protects low areas or basements from backflow or waste from street sewers.
- •Elastomeric seal in quick action flapper ensures a water tight seal.
- •Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand.
- •Valve hub fits DWV pipe and can be adapted for sewer and drain pipe.
Oatey 4 in. PVC Backwater Valve
List Price: $52.36$47.12DEALYou Save: $5.24 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 22, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers3.9
out of 5
Based on 10 reviews
5★
80%
4★
10%
3★
10%
2★
0%
1★
0%
PLEASE VERIFY THE DETAILS BEFORE YOU PUT A PRODUCT UP FOR SALE!!!
Robert F. Kolec✓ Verified Purchase•August 27, 2017
This valve was actually ABS not PVC. It didn't make a difference in my situation but it could have been if someone used the wrong glue for it. PLEASE VERIFY THE DETAILS BEFORE YOU PUT A PRODUCT UP FOR SALE!!!
check valve
Dmmlars✓ Verified Purchase•May 6, 2017
Nice quality check valve I used it on 4 in sewer line with septic system so far so good ez to install
GREAT product, saved me!
Amazon Customer✓ Verified Purchase•May 2, 2017
This valve worked fantastic! Saved me from a flooded basement and terrace. We have had storm after storm this spring, and we have a large ravine in our front yard for storm water drainage. During long heavy rains, it does not drain fast enough and water sometimes gets up to 6 feet deep. Well our sunken terrace drains into the ravine in the front yard, so when that backs up, it actually pushes water back up the drain and starts filling the sunken terrace! This happened a month or so ago, and we had a huge mess to clean up so I ordered this backflow valve and installed it. Not a moment too soon either! A few days after it was installed on the end of the terrace drain pipe, we got another huge storm and the ravine filled up higher than I have ever seen it. The terrace continued to drain as normal and no water came back up the pipe. The ravine stayed at 6-8 feet high full of muddy storm water for quite a while before going back down. The terrace drained as normal and the basement is bone dry. Worked perfectly.
Definitely needs a better gasket and/or some sort of adhesive to attach it
hayley warshauer✓ Verified Purchase•November 28, 2016
It comes with a gasket for the flapper but it doesn't stay in the grove. Definitely needs a better gasket and/or some sort of adhesive to attach it. As is it will still prevent a major sewer backup.
It works had a issue with city sewer backing up ...
LJ France✓ Verified Purchase•July 11, 2016
It works had a issue with city sewer backing up caused a massive damage to home, installed this and no issues.
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