GROCO Backing Block f/3/4" 1" Seacocks

Ensure the integrity of your vessel’s seacock installations with our premium Backing Block, expertly designed for both 3/4" and 1" seacocks. Crafted to provide a reliable foundation, this backing block guarantees secure mounting and long-lasting performance in marine environments.

Key Features

• Versatile sizing accommodates multiple seacock dimensions, including 3/4" and 1"
• Easy installation with press-threaded brass inserts that align seamlessly with seacock flanges
• Durable 1/2" thick construction offers a sturdy hold while flexing to adapt to minor hull curvatures
• Resistant to swelling and moisture absorption, ensuring longevity and consistent performance
• Manufactured from environmentally friendly PVC foam, specially formulated for marine applications

Installation Instructions

1. Position the backing block on the hull, aligning the holes with the seacock flanges.
2. Press the threaded brass inserts into the hull side of the backing block, ensuring a tight fit.
3. Secure the seacock to the backing block using appropriate fasteners, following manufacturer guidelines.
4. Verify the installation by checking for a secure and stable attachment, allowing for hull flexibility.

Specifications

Construction	Bronze
Box Dimensions	1" H x 7" W x 9" L
Weight	0.2 lbs
UPC	742985169845

Why Choose Our Backing Block?

Our Backing Block stands out in the marine industry for its reliable performance and ease of installation. Whether you’re upgrading your current setup or installing a new seacock, this backing block provides the necessary support and durability to withstand the harsh marine environment. Its environmentally friendly PVC foam construction not only ensures longevity but also aligns with sustainable marine practices.

Customer Reviews

“Installed the backing block on my sailboat with no issues. It fits perfectly and gives me peace of mind knowing my seacocks are securely mounted.” – Alex M.

“High-quality materials and easy to install. Highly recommend for any marine installation.” – Jamie L.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.