GROCO Backing Block for 3/4 & 1" Seacocks

The GROCO Backing Block is designed for use with 3/4 and 1 inch seacocks, providing sturdy support and added security for marine plumbing installations. Made for ease of installation and reliable performance in harsh marine environments, it helps ensure watertight and durable mounting of seacocks. Ideal for boat owners and marine professionals seeking quality components for their vessels.