Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
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Description
GROCO Backing Block f/3/4" 1" Seacocks [BB-1]Backing Block for 3 4" & 1" Seacocks Features: Each size fits multiple seacock sizes Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange Rigid 1 2" thickness provides secure installation but is flexible enough to conform to minor hull curvature Will not swell or absorb moisture Made from an environmentally friendly PVC foam specially formulated for marine applications Specifications:
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
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Best in 7 days
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Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 1627 reviews
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Product Reviews
★★★★★ 5
Beautiful & functional
Size: 24x7.9, Color: Black
I was really surprised at how easy these shelves were to install. They look great, and give an elegant, subtle, look to any room. I'm using them in my home office. I plan to order a couple more sets soon.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Nice
Size: 24x5.8, Color: Black
Easy install. Look nice and solid. Pay attention and be sure to install shelves with the pre drilled holes on the bottom of shelves.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Great small hanging shelf
These were a great addition to my DYI bathroom remodel. I needed that exact length and it fit perfect for my needs and I was able to install it myself. I’m a 53-year-old woman. I used the other one for a shelf for a candle as well. It holds my oral hygiene caddy well, keeping my sink counter clean.
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Reviewed in the United States on October 11, 2025
★★★★★ 5
Works Great and Easy to use
Size: 15x6.8, Color: Black
Great product works as described in ad and easy to use. Well built design and good quality. Easy to install. The price was a good value and fast shipped.
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Reviewed in the United States on October 9, 2025
★★★★★ 4
Not too sturdy
Size: 15x6.8, Color: Black
Not the sturdiest or highest of quality, but they look good. We attached them to our headboard as night tables and reinforced them with L braces from Home Depot and they work great
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Reviewed in the United States on November 19, 2025
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