Marelon Integrated Plumbing
Forespar's Marelon® Integrated Plumbing Systems designed to meet your boats plumbing needs. Precision moulded plumbing systems for use above and below the waterline. It's unique design provides easy installation in a wide variety of valve configurations.
Marelon is the perfect material for marine plumbing systems. It's non-corrosive proprietary formulation of polymer composite compounds use a resins and additives to produce a superior marine-grade product.
Forespar® "93" Series of Valves and Thru-hull fittings meet all design criteria and exceed all mechanical property requirements specified by the International Standards Organisation. (OSO150/188) Small Craft Seacocks and Thru-hull Fittings - Part 2: Non-Metallic.
Arrows on Marelon Integrated Plumbing images indicate water flow direction.
Seacock Replacement Instructions for Integrated Valves
Do Check your valves regularly. These are critical to the safety of your boat.
What is MareLube TEF 45?
The ultimate in corrosion protection. Protects, lubricates, stops corrosion, prevents seizing and galling. Won't wash away in fresh or salt water or detergents.
Forespar® Plumbing is made of Marelon® a superior marine-grade product.
Know Your Thread Forms
MARINE thru-hulls, tailpipes, valves and seacocks have parallel threads known as “American Standard Straight Mechanical” pipe threads or “NPSM”. These require thread compound or Teflon tape to seal.
Marelon® - Marine Grade Plumbing Systems
In the late 1970’s we (Forespar) undertook a search for a material that could replace the traditional bronze plumbing components used in boats.