Price History for Therm-X-Trol 10.3 Gal. Expansion Tank
Close
Therm-X-Trol 10.3 Gal. Expansion Tank
The Therm-X-Trol Expansion Tank can be used in a variety of places such as apartments, office buildings and hospitals. This expansion tank helps eliminate BTU and water waste. The tank helps protect the fixture
Set Price Alert
Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Aug 12, 2026 | $349.46 |
| Aug 9, 2026 | $352.06 |
| Aug 7, 2026 | $349.46 |
| Aug 5, 2026 | $349.47 |
| Aug 4, 2026 | $351.79 |
| Aug 3, 2026 | $355.36 |
| Aug 2, 2026 | $362.72 |
| Aug 1, 2026 | $406.71 |
| Jul 31, 2026 | $401.57 |
| Jul 24, 2026 | $412.68 |
| Jul 23, 2026 | $399.84 |
| Jul 22, 2026 | $363.49 |
| Jul 21, 2026 | $330.44 |
| Jun 22, 2026 | $275.25 |
| Jun 12, 2026 | $275.25 |
| Jun 1, 2026 | $275.25 |
| May 4, 2026 | $275.25 |
Analysis
Therm-X-Trol 10.3 Gal. Expansion Tank price analysis
Price analysis for Therm-X-Trol 10.3 Gal. Expansion Tank at Home Depot: Today's price is $349.46. Current price is 0% below the 90-day average of $350.68 (a $1.22 below the running mean).
- Currently listed at $349.46, which is $74.21 above the original MSRP of $275.25.
- Current price is 0% below the 90-day average of $350.68 (a $1.22 below the running mean).
- The lowest recorded price on PriceWatchPro was $275.25 on May 4, 2026. That's $74.21 below today's price.
- The highest recorded price on PriceWatchPro was $412.68 on July 24, 2026. Today's price is $63.22 below that peak.
- 30-day trend: trending up 5.8% from $330.44 to $349.46.
- Across 16 tracked price changes, the listing has dropped 6 times with an average drop of $11.83.
- PriceWatchPro has been tracking this listing since May 4, 2026 (102 days of price history).
Related
More Plumbing deals on Home Depot
Track price history on other items shoppers are watching in this category.
Support
Home Depot FAQs
Tips for tracking this Home Depot item with alerts and price history.
How do I track price drops for Home Depot?
Pick a target price on this page and save it. We will email you when this Home Depot listing drops below your goal.
Where can I review price history?
Check the price history chart on this page to compare today’s price against recent highs and lows before buying.
Can I edit or pause alerts later?
Yes. Edit, pause, or delete alerts anytime from your PriceWatchPro dashboard after you sign in.
Snapshot
Therm-X-Trol 10.3 Gal. Expansion Tank shopping snapshot
Track this Home Depot listing with real-time alerts, a full price history, and side-by-side savings tips.
Understand pricing trends
Use the chart above to see seasonal lows, promo spikes, and the average street price so you can time your purchase.
Set alerts that match your budget
Choose a target price and we will email you when Therm-X-Trol 10.3 Gal. Expansion Tank dips below that number.
Shop confidently
Review specs, availability, and recent updates from Home Depot before jumping to the store page.