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Explore Groco Backing Block F/2" 2-1/2" Seacocks [bb-3] - Ships Same Day [51KsVrnQ]

$23.99 $76.99 -69%

GROCO Backing Block for 2" & 2-1/2" Seacocks Discover the perfect solution for your marine installations with the GROCO Backing Block for 2" & 2-1/2" Seacocks. This versatile backing block is designed to provide a secure and adaptable fit for multipl

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Explore Groco Backing Block F/2" 2-1/2" Seacocks [bb-3] - Ships Same Day [51KsVrnQ]

GROCO Backing Block for 2" & 2-1/2" Seacocks

Discover the perfect solution for your marine installations with the GROCO Backing Block for 2" & 2-1/2" Seacocks. This versatile backing block is designed to provide a secure and adaptable fit for multiple seacock sizes, ensuring a perfect seal every time. Crafted with precision, this backing block combines durability and flexibility to meet the demands of marine environments.

Product Features

The GROCO Backing Block stands out for its unique features that enhance its performance and reliability. Each size of the backing block is meticulously designed to fit multiple seacock sizes, offering you a flexible solution for your marine needs. To install, simply press the threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange. The rigid 1/2" thickness ensures a secure installation while still being flexible enough to conform to minor hull curvature. This backing block will not swell or absorb moisture, maintaining its integrity even in harsh marine conditions. Made from an environmentally friendly PVC foam specially formulated for marine applications, it is a sustainable choice for boaters who prioritize the health of our oceans.

Specifications and Practical Uses

The GROCO Backing Block is constructed from high-quality bronze, ensuring its longevity and resistance to corrosion. With box dimensions of 1"H x 7"W x 7"L and a weight of 0.45 lbs, it is designed to be both compact and lightweight. This product is ideal for a wide range of marine applications, including boats, yachts, and other watercraft. Whether you are a professional marine mechanic or a hobbyist, the GROCO Backing Block is an essential tool that will enhance the efficiency and safety of your marine installations. By choosing this product, you are investing in quality, durability, and environmental responsibility, making it a smart choice for any marine enthusiast.

What Our Customers Say

January 24, 2026

Absolutely no complaints!

This is a very well-made and aesthetically pleasing item.

- Val Williams.

January 24, 2026

Absolutely no complaints!

It's been a reliable workhorse since day one.

- Zoe Wood.

January 24, 2026

Absolutely no complaints!

Looks even better in person than in the pictures.

- Kenneth G..

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