Price History for Lock and Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed
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Lock and Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed
The Defender Security MP9551 Stainless Steel Lock and Door Reinforcer assists in preventing forced entry by reinforcing the weak spot of your door. It can be used to reinforce and repair metal, fiberglass and w
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Price History Chart
Recorded price history
Showing the 30 most recent of 60 recorded prices.
| Date | Price |
|---|---|
| Oct 20, 2026 | $12.33 |
| Sep 27, 2026 | $11.21 |
| Sep 10, 2026 | $10.19 |
| Sep 9, 2026 | $11.21 |
| Sep 8, 2026 | $10.19 |
| Sep 6, 2026 | $11.21 |
| Sep 3, 2026 | $10.19 |
| Sep 1, 2026 | $11.21 |
| Aug 31, 2026 | $10.19 |
| Aug 30, 2026 | $11.21 |
| Aug 25, 2026 | $10.19 |
| Aug 24, 2026 | $11.21 |
| Aug 22, 2026 | $10.19 |
| Aug 21, 2026 | $11.21 |
| Aug 15, 2026 | $10.19 |
| Aug 12, 2026 | $11.21 |
| Aug 9, 2026 | $10.19 |
| Aug 7, 2026 | $11.21 |
| Jul 23, 2026 | $10.19 |
| Jul 22, 2026 | $9.81 |
| Jul 21, 2026 | $8.92 |
| Jul 20, 2026 | $9.73 |
| Jul 19, 2026 | $8.85 |
| Jul 17, 2026 | $9.59 |
| Jul 14, 2026 | $10.19 |
| Jul 8, 2026 | $6.90 |
| Jul 5, 2026 | $10.19 |
| Jul 3, 2026 | $8.96 |
| Jul 2, 2026 | $8.15 |
| Jul 1, 2026 | $8.96 |
60 recorded prices; last found in Home Depot’s data on Nov 4, 2026. How we track prices
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Analysis
Lock and Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed price analysis
Price analysis for Lock and Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed at Home Depot: today's price of $12.33 is the highest price we've recorded for this listing.
- Currently listed at $12.33, which is $3.91 above the original MSRP of $8.42.
- Today's price is 12% above its average daily price over the last 90 days ($10.98).
- The lowest recorded price on PriceWatchPro was $6.90 on July 8, 2026. That's $5.43 below today's price.
- The highest recorded price on PriceWatchPro was $12.33 on October 20, 2026.
- Across 59 tracked price changes, the listing has dropped 25 times with an average drop of $1.11.
- PriceWatchPro has been tracking this listing since October 18, 2025 (382 days of price history).
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