Harbor Freight prices › Air Tools & Compressors › Air Compressor Accessories
MERLINitem 63566
1/4 in. Steel Industrial Quick Coupler Set, 5-Piece
Base price$3.49$1.50 off regular (30%)Regular $4.99
Bartlesville, OK shelf$3.49same shelf price as online 2 more stores
Middletown, OH shelf$3.49same shelf price as online 2 more stores
Benton Harbor, MI shelf$3.49same shelf price as online 2 more stores
$3.49 is below the usual $4.99, but it's been cheaper ($2.97 in the last 90 days).
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Coupon, anyone can use
$3.4930% off
Through Nov 25, 2026. From Harbor Freight's coupon site. See it on Harbor Freight's coupon site
Fair $3.49 is below the usual $4.99, but it's been cheaper ($2.97 in the last 90 days).
Price alert
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The numbers
- Today
- $3.49
- Usual price
- $4.99
- 90-day low
- $2.97
- Lowest tracked
- $2.97
- Milton equivalent
- $22.99
Nov 1, 2026
Prices by store
Harbor Freight prices some items differently by store, and once you pick a store its site shows that store's shelf price. These come from contributors who share their store; the main price above is the base price, the one HF shows before you pick a store.
| Store | Today | Usually |
|---|---|---|
| Bartlesville, OK store 3021, checked Nov 2, 2026 | $3.49 | $4.99 |
| Benton Harbor, MI store 583, checked Oct 21, 2026 | $3.49 | $4.99 |
| Middletown, OH store 3366, checked Nov 4, 2026 | $3.49 | $4.99 |
Price history
Best price for anyoneInside Track Club priceRegular price
Every price change
| When | Price | Members | Why |
|---|---|---|---|
| Nov 2, 2026 to Nov 5, 20264 days, checked 3x | $3.4930% off | Sale price | |
| Oct 30, 2026 to Nov 1, 20263 days, checked 3x | $2.9740% off | 15% off any single item (one item a day) | |
| Oct 29, 20261 day, checked 1x | $3.4930% off | $2.97 | Sale price |
| Oct 17, 2026 to Oct 28, 202612 days, checked 4x | $3.4930% off | Sale price | |
| Oct 16, 20261 day, checked 0x | $3.4930% off | Coupon | |
| Apr 24, 2026 to Oct 15, 2026175 days, checked 0x | $4.99 | Regular price | |
| Apr 10, 2026 to Apr 23, 202614 days, checked 0x | $3.0040% off | Coupon | |
| Mar 7, 2026 to Apr 9, 202634 days, checked 1x | $4.99 | Regular price | |
| Jan 21, 2026 to Mar 6, 202645 days, checked 1x | $3.9920% off | Sale price | |
| Aug 1, 2025 to Jan 20, 2026173 days, checked 0x | $4.99 | Regular price | |
| Jul 4, 2025 to Jul 31, 202528 days, checked 0x | $4.99 | $2.99 | Regular price |
| Mar 25, 2025 to Jul 3, 2025101 days, checked 0x | $4.99 | Regular price | |
| Feb 25, 2025 to Mar 24, 202528 days, checked 0x | $4.99 | $3.99 | Regular price |
| Dec 2, 2024 to Feb 24, 202585 days, checked 0x | $4.99 | Regular price | |
| Nov 4, 2024 to Dec 1, 202428 days, checked 0x | $4.99 | $3.99 | Regular price |
| Nov 26, 2023 to Nov 3, 2024344 days, checked 0x | $4.99 | Regular price | |
| Oct 29, 2023 to Nov 25, 202328 days, checked 0x | $4.99 | $3.99 | Regular price |
| Jun 5, 2022 to Oct 28, 2023511 days, checked 1x | $4.99 | Regular price |
Tracking since Oct 17, 2026. Last checked Nov 4, 2026.