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One-of-a-kind Groco Backing Block F/2" 2-1/2" Seacocks [bb-3] Web Only Deal [YHRcQwGA]

$22.99 $73.99 -69%

Secure Backing Block for Seacocks The GROCO Backing Block f/2" 2-1/2" Seacocks [BB-3] is a versatile and durable solution for marine installations. Designed to fit both 2" and 2-1/2" seacocks, this backing block offers unmatched flexibility and secur

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One-of-a-kind Groco Backing Block F/2" 2-1/2" Seacocks [bb-3] Web Only Deal [YHRcQwGA]

Secure Backing Block for Seacocks

The GROCO Backing Block f/2" 2-1/2" Seacocks [BB-3] is a versatile and durable solution for marine installations. Designed to fit both 2" and 2-1/2" seacocks, this backing block offers unmatched flexibility and security. Its robust construction ensures a long-lasting performance, making it an essential accessory for any marine project.

Key Features and Specifications

The GROCO Backing Block [BB-3] is crafted from high-quality bronze, providing excellent strength and resistance to corrosion. Its unique design allows for easy installation by simply pressing threaded brass inserts into the hull side, aligning with the seacock flange. This backing block boasts a rigid 1/2" thickness, which offers a secure fit while remaining flexible enough to conform to minor hull curvature. Key features include:
  • Each size fits multiple seacock sizes
  • Press threaded brass inserts into the hull side for easy installation

Environmentally Friendly and Versatile

The GROCO Backing Block [BB-3] is made from an environmentally friendly PVC foam, specially formulated for marine applications. This material ensures that the backing block will not swell or absorb moisture, maintaining its integrity over time. With its lightweight and compact box dimensions of 1"H x 7"W x 7"L and a weight of 0.45 lbs, this product is both practical and easy to store. Its versatility makes it an ideal choice for a wide range of marine installations, ensuring a secure and reliable connection every time.

What Our Customers Say

January 18, 2026

Absolutely no complaints!

Excellent choice. I am really happy.

- Hayley D..

January 18, 2026

Absolutely no complaints!

This product is a truly class act.

- Elias B..

January 18, 2026

Absolutely no complaints!

2_29. It’s a very smart design. And works well.

- Axel L..

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