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Forspar Marelon Full-Flow Seacock 3/4" Mushroom Through-Hull [904043ABYC]

$117.45 $93.96
(You save $23.49)
In stock and will ship today if purchased before 3:30pm EST, later orders will ship the following business day. Credit Card purchases accepted through Paypal/Paypal Guest Checkout. (No account needed)

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Product Description

Marelon Full-Flow Seacock & 3/4" 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



Other Details

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Product Reviews

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  1. Forespar thru hull 5 Star Review

    Posted by on Aug 20th 2018

    Works fine but could not find a flush thru hull by same maker that match the threads. Strange.

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