Price History for On/Off Switch, 10/20A, 125/277Vac, 1-1/2HP, Black, Unit Mounted 99-001
Close
On/Off Switch, 10/20A, 125/277Vac, 1-1/2HP, Black, Unit Mounted 99-001
The Mars Air Systems 99-001 is a black on/off switch designed for unit-mounted installation on HVAC equipment, compatible with 125/277VAC systems and supporting up to 1-1/2 HP and 10/20 amps.
Set Price Alert
Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Aug 3, 2026 | $120.08 |
| Jul 8, 2026 | $120.08 |
| Jul 1, 2026 | $120.08 |
| Jun 22, 2026 | $120.08 |
Analysis
On/Off Switch, 10/20A, 125/277Vac, 1-1/2HP, Black, Unit Mounted 99-001 price analysis
Price analysis for On/Off Switch, 10/20A, 125/277Vac, 1-1/2HP, Black, Unit Mounted 99-001 at Home Depot: Today's price is $120.08. The current price matches the 90-day average of $120.08.
- Currently listed at $120.08, which is $0.00 above the original MSRP of $120.08.
- The current price matches the 90-day average of $120.08.
- The lowest recorded price on PriceWatchPro was $120.08 on June 22, 2026. The current listing is at this all-time low.
- The highest recorded price on PriceWatchPro was $120.08 on June 22, 2026.
- No meaningful price drops recorded in the tracked history — this listing has held steady or trended upward.
- PriceWatchPro has been tracking this listing since June 22, 2026 (59 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
On/Off Switch, 10/20A, 125/277Vac, 1-1/2HP, Black, Unit Mounted 99-001 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 On/Off Switch, 10/20A, 125/277Vac, 1-1/2HP, Black, Unit Mounted 99-001 dips below that number.
Shop confidently
Review specs, availability, and recent updates from Home Depot before jumping to the store page.