Best in 7 days
![Plano Rustrictor 3700 Stowaway [PLASV370]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/79726XL.jpg?v=1643861788 "Plano Rustrictor 3700 Stowaway [PLASV370]")
![Harken 40mm Carbo Air Double Swivel Block [2638]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/79734XL.jpg?v=1643861883 "Harken 40mm Carbo Air Double Swivel Block [2638]")
Pay in installments of $21.74 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 17 - Jun 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Harken 40mm Carbo Air Double Swivel Block [2638]40mm Carbo Air Double Swivel Block Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave (mm)40 mm Sheave (in)1 9 16 in Maximum line (mm)10 mm Maximum line (in)3 8 in Maximum working load (kg)440 kg Maximum working load (lb)970 lb Quick Guide (pdf)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
![RAM Mount RAM No-Drill Vehicle Base f/19 Chevy Silverado 1500 GMC 1500 [RAM-VB-203]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/80016XL.jpg?v=1643863356 "RAM Mount RAM No-Drill Vehicle Base f/19 Chevy Silverado 1500 GMC 1500 [RAM-VB-203]")
Best in 7 days
![Furuno South America West Coast - Costa Rica to Chile to Falklands Vector Charts - Unlock Code [MM3-VSA-500]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/79938XL.jpg?v=1643862926 "Furuno South America West Coast - Costa Rica to Chile to Falklands Vector Charts - Unlock Code [MM3-VSA-500]")
Best in 7 days
![RAM Mount RAM No-Drill Vehicle Base for 2019 Ford Ranger [RAM-VB-202]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/80018XL.jpg?v=1643863377 "RAM Mount RAM No-Drill Vehicle Base for 2019 Ford Ranger [RAM-VB-202]")
Best in 7 days
![Sea-Dog Boat Hook Combination Soft Bristle Brush Squeegee [491075-1]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/80041XL.jpg?v=1643863563 "Sea-Dog Boat Hook Combination Soft Bristle Brush Squeegee [491075-1]")
4.5 ★★★★★
Based on 621 reviews
Sort
Product Reviews
★★★★★ 5
Work well ; well priced .
Size: 4 Pack, Color: A-Ivory White
Came well packaged and are made well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Safe, Simple, Reliable!!
These adapters are heavy‑duty and dependable. The fireproof build feels secure, and the grounding tab adds peace of mind. Perfect for older outlets, they fit snugly and keep devices running without hassle. A practical, no‑nonsense solution that delivers safety and convenience in bulk. I have converted most of my outlets with this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
Worth the price
Size: 4 Pack, Color: A-Ivory White
Really cheap and work great also easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 4
Great for the house
Size: 4 Pack, Color: A-Ivory White
Good and handy. Glad I ordered.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2025
★★★★★ 5
It really WORKS!
Size: 2 Pack, Color: A-Ivory White
They worked and just what I needed. They solved the issue I had. Thanks for a great product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
