Price History for tankRO - RO Water Filtration System Expansion Tank - 4 Gallon - NSF Certified Reverse Osmosis Storage Pressure Tank

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tankRO - RO Water Filtration System Expansion Tank - 4 Gallon - NSF Certified Reverse Osmosis Storage Pressure Tank

The tankRO 4 Gallon Water Storage Tank gives tasteless, odorless, and contaminant free water. Get a quality tank you can rely on today for your RO system. The post cured diaphragm means sterile water distributi

ItemId: 307340294
UPC: 641990965834
$39.99
Last Updated
07-Aug-26 01:51 AM
In Stock
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Price History Chart

Lowest
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Highest
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Current
$39.99
View at Home Depot

Recorded price history

DatePrice
Jul 10, 2026 $39.99
Jul 9, 2026 $53.99
Jul 6, 2026 $39.99
Jul 5, 2026 $52.96
Jun 3, 2026 $39.99
May 30, 2026 $47.84
May 15, 2026 $48.74
Dec 19, 2025 $39.99
Dec 14, 2025 $33.99
Dec 1, 2025 $33.99
Nov 30, 2025 $33.99
Nov 17, 2025 $33.99

Analysis

tankRO - RO Water Filtration System Expansion Tank - 4 Gallon - NSF Certified Reverse Osmosis Storage Pressure Tank price analysis

Price analysis for tankRO - RO Water Filtration System Expansion Tank - 4 Gallon - NSF Certified Reverse Osmosis Storage Pressure Tank at Home Depot: Today's price is $39.99. Current price is 13% below the 90-day average of $46.21 (a $6.22 below the running mean).

  • Currently listed at $39.99, which is $6.00 above the original MSRP of $33.99.
  • Current price is 13% below the 90-day average of $46.21 (a $6.22 below the running mean).
  • The lowest recorded price on PriceWatchPro was $33.99 on November 17, 2025. That's $6.00 below today's price.
  • The highest recorded price on PriceWatchPro was $53.99 on July 9, 2026. Today's price is $14.00 below that peak.
  • 30-day trend: trending down 25.9% from $53.99 to $39.99.
  • Across 11 tracked price changes, the listing has dropped 4 times with an average drop of $8.93.
  • PriceWatchPro has been tracking this listing since November 17, 2025 (264 days of price history).

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