Pay in installments of $11.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
For Your Every Summer RSVP, with Code: SUMMER15
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:
![GROCO Backing Block f/3/4" 1" Seacocks [BB-1] GROCO Backing Block f/3/4" 1" Seacocks [BB-1]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/72847XL.jpg?v=1591357540)
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
4.6 ★★★★★
Based on 1290 reviews
Sort
Product Reviews
★★★★★ 5
Great value for the price
Perfect fit,good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 5
Power steering leak
Worked great. No problem at all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 5
perfect fit for 2005 acura rsx s-type
Why did you pick this product vs others?:
fixed my PS pump leak fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 7, 2025
★★★★★ 5
So good. No more whine!
Worked like a charm on a 2007 & 2009 Accord 4cyl
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 4
No instructions
No instructions... No idea which one is the high pressure side.They seem to be good quality but I have not used them yet...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
recommand products
L'EAU D'ISSEY (issey Miyake) by Issey Miyake Eau De Toilette Spray (unboxed) 4.2 oz for Men
28.59
Red Door by Elizabeth Arden Eau De Toilette Spray (unboxed) 1 oz for Women
15.97
Grips,Grippler,33Mm,Lock On,P360 Green
19.50
H&R Trak+ 25mm Wheel Spacers for 1988-1991 Honda Prelude (BA)
151.95
Valentina Blush by Valentino Eau De Parfum Spray (Unboxed) 1.7 oz for Women
72.19


![Raymarine Paddle Wheel Kit f/ST40, 60, 60 PLUS, 365/470/750 [R69015]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/72443XL.jpg?v=1591355847)
![Megaware SkegPro 02673 Stainless Steel Skeg Protector [02673]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/72280XL.jpg?v=1591355074)
