Price History for 4 in. PVC DWV Backwater Valve
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4 in. PVC DWV Backwater Valve
The Oatey Backwater Valve is designed as a sewage check valve to prevent pumped water from flowing back into the basin. Its elastomeric seal inside the flapper ensures a tight seal, preventing fluid from enteri
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Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Jul 25, 2026 | $42.18 |
| Jul 21, 2026 | $43.37 |
| Jul 19, 2026 | $43.38 |
| Jul 18, 2026 | $44.72 |
| Jul 15, 2026 | $43.37 |
| Jul 14, 2026 | $43.38 |
| Jul 13, 2026 | $44.72 |
| Jul 11, 2026 | $43.37 |
| Jul 10, 2026 | $45.23 |
| Jul 8, 2026 | $43.37 |
| Jul 7, 2026 | $44.51 |
| Jul 3, 2026 | $45.23 |
| Jul 2, 2026 | $43.38 |
| Jan 25, 2026 | $34.77 |
| Jan 18, 2026 | $34.83 |
| Dec 14, 2025 | $34.91 |
| Dec 7, 2025 | $34.91 |
| Nov 23, 2025 | $34.91 |
| Oct 22, 2025 | $34.91 |
Analysis
4 in. PVC DWV Backwater Valve price analysis
Price analysis for 4 in. PVC DWV Backwater Valve at Home Depot: Today's price is $42.18. Current price is 4% below the 90-day average of $43.86 (a $1.68 below the running mean).
- Currently listed at $42.18, which is $7.27 above the original MSRP of $34.91.
- Current price is 4% below the 90-day average of $43.86 (a $1.68 below the running mean).
- The lowest recorded price on PriceWatchPro was $34.77 on January 25, 2026. That's $7.41 below today's price.
- The highest recorded price on PriceWatchPro was $45.23 on July 3, 2026. Today's price is $3.05 below that peak.
- 30-day trend: trending down 2.8% from $43.38 to $42.18.
- Across 18 tracked price changes, the listing has dropped 6 times with an average drop of $1.27.
- PriceWatchPro has been tracking this listing since October 22, 2025 (294 days of price history).
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Snapshot
4 in. PVC DWV Backwater Valve shopping snapshot
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