MEMORIAL DAY SALE! Tons of products on sale until May 31st!

Get up to $3,000 back on Raymarine Products until 7/7/24 CLICK HERE

Forespar Marelon Full-Flow Seacock & 1" Mushroom Through-Hull - 904044ABYC

$85.99 $139.45
SKU: 68949

Manufacturer Part #: 904044ABYC

Marelon Full-Flow Seacock & 1" 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

Selling fast!
Grab yours while you can

Reviews (1)

Customer Reviews

Based on 1 review
Martin Loehle
Boat owner

This 1" Forespar Marelon full flow sea cock is much larger than the original design. Compared to an old style Marelon 3/4" ball valve it is twice the size. This would indicate that it is a stronger device. I believe that this sea cock will provide the same trouble free service that the other three Marelon seacocks on this boat have provided.



Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • JCB
  • Mastercard
  • PayPal
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.