Price History for Ultimate Premium Quality 90 GPD pH+ Alkaline Mineral Under-Sink Reverse Osmosis Drinking Water Filter System
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Ultimate Premium Quality 90 GPD pH+ Alkaline Mineral Under-Sink Reverse Osmosis Drinking Water Filter System
Enjoy fresh, great tasting pH+ mineral water right at home that is perfect for drinking, cooking and making delicious coffee, tea and ice. RO-PH90 guaranteed to remove up to 99% of harmful water contaminants su
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Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Jul 16, 2026 | $359.99 |
| Jul 15, 2026 | $445.99 |
| Jul 10, 2026 | $332.16 |
| Jul 9, 2026 | $445.99 |
| Jul 5, 2026 | $332.16 |
| Jun 27, 2026 | $321.70 |
| Jun 19, 2026 | $359.99 |
| Jun 11, 2026 | $363.05 |
| Jun 10, 2026 | $340.60 |
| May 21, 2026 | $318.15 |
| Apr 16, 2026 | $369.95 |
| Apr 9, 2026 | $353.82 |
| Apr 6, 2026 | $369.95 |
| Mar 16, 2026 | $353.83 |
| Mar 15, 2026 | $409.99 |
| Mar 13, 2026 | $353.83 |
| Jan 29, 2026 | $361.05 |
| Dec 14, 2025 | $339.95 |
| Dec 8, 2025 | $339.95 |
| Nov 17, 2025 | $339.95 |
| Oct 28, 2025 | $339.95 |
Analysis
Ultimate Premium Quality 90 GPD pH+ Alkaline Mineral Under-Sink Reverse Osmosis Drinking Water Filter System price analysis
Price analysis for Ultimate Premium Quality 90 GPD pH+ Alkaline Mineral Under-Sink Reverse Osmosis Drinking Water Filter System at Home Depot: Today's price is $359.99. Current price is 2% below the 90-day average of $366.85 (a $6.86 below the running mean).
- Currently listed at $359.99, which is $20.04 above the original MSRP of $339.95.
- Current price is 2% below the 90-day average of $366.85 (a $6.86 below the running mean).
- The lowest recorded price on PriceWatchPro was $318.15 on May 21, 2026. That's $41.84 below today's price.
- The highest recorded price on PriceWatchPro was $445.99 on July 9, 2026. Today's price is $86.00 below that peak.
- Across 20 tracked price changes, the listing has dropped 8 times with an average drop of $46.56.
- PriceWatchPro has been tracking this listing since October 28, 2025 (295 days of price history).
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