Forespar® Plumbing is made of Marelon® a superior marine-grade product.
Forespar® plumbing is made of Marelon® which is a proprietary formulation of polymer composite compounds using engineered resins and additives to produce a superior marine-grade product. All seacocks have been factory assembled and pressure tested to Marine U.L. standards and conforms to all current A.B.Y.C. H-27 standards.
Forespar® valves have N.P.S.M. (NPT Parallel) - American thread which is angled at 60°; unless specified as B.S.P. - British thread which is angled at 55°. You will need to know what type you're using if the measurement is above 1".
For more details of material and sizing of the Forespar® range of plumbing, you can download the Forespar® catalogues and tech sheets.
