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🚨 Stop floods before they start — your 4-inch flood guardian awaits!
The Internal Backwater Valve 4-F 4" Float Model Flood-Guard is a robust flood prevention device made from solid brass and molded rubber. Designed for 4-inch flood drains, it automatically seals off sewer backflow using a float mechanism, preventing costly water damage. Easy to install with just a screwdriver, this valve offers reliable, maintenance-free protection for your home’s drainage system.
| ASIN | B08QHZ1YFQ |
| ASIN | B08QHZ1YFQ |
| Best Sellers Rank | #18,000 in Health ( See Top 100 in Health ) #52 in Household Drain Openers |
| Brand Name | Minimprover |
| Connector Type | Threaded |
| Customer Reviews | 4.1 4.1 out of 5 stars (366) |
| Customer reviews | 4.1 4.1 out of 5 stars (366) |
| Date First Available | 17 February 2021 |
| Exterior Finish | Brass |
| Inlet Connection Size | 4 Inches |
| Inlet Connection Type | Standard Pipe Thread |
| Item model number | H087-4 |
| Manufacturer | Minimprover |
| Manufacturer | Minimprover |
| Manufacturer Part Number | H087-4 |
| Material Type | Brass Rubber |
| Model Number | H087-4 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 4 Inches |
| Outlet Connection Type | NPT |
| Package Dimensions | 10.31 x 10.21 x 9.3 cm; 358 g |
| Size | 4" Flood-Guard |
| Smart Home Compatibility | Not Smart Home Compatible |
| Thread Size | 4 inches |
| Thread Type | Standard Pipe Thread |
| UPC | 779880498541 |
| Unit Count | 1.0 Count |
| Valve Type | Lift Check Valve |
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