Unique Products for Your Boat

Seacock Backing Block for 1.25" to 1.5" Seacocks

$69.99 $59.99

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Pre-made Backing Block for 1.25"" to 1.5" Seacocks

Super handy and easy to install. Will not rot like wood and provides adequate support for through bolted seacocks.

Features:

  • Fits 1.25" & 1.5" Groco Seacocks or Flanged Adapters
  • Threaded inserts into the hull side of the backing block for holes that match the seacock flange
  • Rigid 1/2" thickness provides secure installation
  • Will not swell, rot or absorb moisture