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

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  • Regular price $68.61
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Backing Block for 2" & 2-1/2" Seacocks


  • Each size fits multiple seacock sizes
  • Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange
  • Rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature
  • Will not swell or absorb moisture
  • Made from an environmentally friendly PVC foam specially formulated for marine applications

Manufacturer : GROCO
Manufacturer Part No : BB-3
UPC : 742985170155