Plumbing

Forespar Marelon Marine Plumbing provides strength, light weight and internationally approved underwater systems which will give you years of trouble free, corrosion free and electrolysis free use.

Marelon® is the modern material for marine plumbing systems. It's non-corrosive proprietary formulation polymer composite compounds uses resins and additives to produce a superior marine-grade product that will not deteriorate like traditional bronze marine plumbing parts.

The Marelon Integrated System valves were specifically designed for production boat builders. The complete system comes with a flush or mushroom head "buttress" threaded thru-hull for exceptional strength. When the complete system is used Forespar supply an emergency thru-hull plug as a cap in the handle. All configurations meet or exceed ABYC standards, are U.L. Approved and ISO Certified.

To view Installation Instructions, Maintenance tips, Certifications and more visit the Forespar Marine Plumbing Buying Guides.



1-1/2" FEMALE-1" BARB

1-1/2" FEMALE-1" BARB

$23.50

1-1/2" FEMALE-1-1/2" BARB

1-1/2" FEMALE-1-1/2" BARB

$26.85

1-1/2" FEMALE-3/4" BARB

1-1/2" FEMALE-3/4" BARB

$20.15

17mm Drain Socket

17mm Drain Socket

$1.20

22mm Screw Bung & Socket

22mm Screw Bung & Socket

$4.75

26mm Drain Socket + Bung

26mm Drain Socket + Bung

$3.85

Basket SS

Basket SS

$86.40

Blue Cap MF 830-W

Blue Cap MF 830-W

$19.30

Bulkhead BHC, FE-FE 1-1/2"

Bulkhead BHC, FE-FE 1-1/2"

$130.50

CF 250 1-1/4" Thru-hull

CF 250 1-1/4" Thru-hull

$29.80

CF 250 1/2" Thru-hull

CF 250 1/2" Thru-hull

$23.95

CF 250 3/4" Thru-hull

CF 250 3/4" Thru-hull

$23.10

CF 250 S 1" Thru-hull

CF 250 S 1" Thru-hull

$34.00

CF 250 S 1-1/2" Thru-hull

CF 250 S 1-1/2" Thru-hull

$38.20

CF 250 S 1-1/4" Thru-hull

CF 250 S 1-1/4" Thru-hull

$37.35

CF 250 S 1/2" Thru-hull

CF 250 S 1/2" Thru-hull

$31.05

CF 250 S 3/4" Thru-hull

CF 250 S 3/4" Thru-hull

$31.90

CF 251 1/2" Thru-hull

CF 251 1/2" Thru-hull

$22.30