🚀 Elevate Your Plumbing Game with Effortless Flow Control!
The Full-Port Backwater Valve is a 4-inch black ABS valve featuring a unique normally open design that enhances flow efficiency and simplifies maintenance. With a patented mechanism that nearly eliminates failure and allows for easy cleaning, this valve is engineered for durability and automatic protection against backflow.
| Manufacturer | Mainline |
| Part Number | ML-4963A |
| Item Weight | 20 pounds |
| Item model number | 4963A |
| Is Discontinued By Manufacturer | No |
| Size | 4 Inch |
| Color | Black |
| Material | Abs |
| Item Package Quantity | 1 |
| Measurement System | inch |
| Special Features | Normally Open Design offers no restriction to flow (virtually self-cleaning), Gate Automatically Rises upon reversal of flow isolating plumbing system protection from backflow, Flow Channels on gate body divert sewage from inlet to outlet preventing sewage buildup |
| Batteries Included? | No |
| Batteries Required? | No |
T**T
Paid for itself within 24 hours!
I knew I wanted a backflow preventer after a recent hurricane had sewer water backflowing into my basement. So, as part of a basement upgrade, I decided to put in a backflow preventer. My GC suggested a unit with a clear top so that I could monitor it. The day after it was installed, NYC got record-heavy rains, and this unit kicked in and did its job. We hadn't even covered the new sewer lines yet! Within 24 hours, the unit paid for itself, and I now feel confident that it will work the next time my street floods.
A**R
Great product Needed it before super storm sandy Who knew
You need a little plumbing knowledge to install. I did the job myself. Great product Needed it before super storm sandy Who knew. Great product
Trustpilot
1 month ago
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