Forespar Marelon Full-Flow Seacock & 1/2″ Mushroom Through-Hull

Forespar Performance Products


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Marelon Full-Flow Seacock & 1/2″ Mushroom Through-Hull

This integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is designed to eliminate valve and thru-hull thread style mismatches and associated cross-threading for after market installations common when customers select individual parts from bins.


  • System Includes Full Flow Seacock With Integrated Hose Connector and Mushroom Thru Hull
  • Exceeds ABYC. H-27 Standards – UL Approved
  • For Use Above or Below Waterline
  • Never Corrodes – Exclusive Polymer Formulation
  • Includes Emergency Handle Cap Thru-Hull Plug

Construction = NONE

Additional information

Weight 0.7 lbs
Dimensions 8 × 5 × 4 in
Model Number 904042ABYC
UPC 028026193599