Plumbing Fittings

Our Plumbing Fittings range covers marine plumbing connectors and fittings – skin fittings, seacocks, hose tails and joiners for a boat’s water, bilge and waste systems, built to handle constant water contact without corroding or seizing.

Fittings below the waterline (skin fittings and seacocks) are safety-critical rather than routine plumbing parts, since a failure there lets water into the boat – always use marine-rated bronze, DZR brass or reinforced composite fittings rather than standard plumbing fittings, which corrode or become brittle in a marine environment far faster than they’re designed for. Seacocks should be exercised (opened and closed) periodically even when not in regular use, since a seized seacock is a serious problem if you need to shut it off quickly in an emergency. Above the waterline, hose tails and joiners connect pipework for freshwater, bilge and waste systems – match the fitting’s barb size to your hose diameter exactly, since an undersized or oversized fitting is a common cause of a joint that weeps or blows off under pressure.

Always secure hose-to-fitting joints with a proper marine-grade hose clip, and inspect below-waterline fittings at every haul-out.

Frequently asked questions

What material should below-waterline fittings be made from?

Marine-rated bronze, DZR brass or reinforced composite – not standard plumbing fittings, which corrode or become brittle far faster in a marine environment.

How often should I exercise my seacocks?

Periodically through the season, even if not in regular use – a seized seacock is a serious problem if you need to shut it off quickly in an emergency.

Why does my hose joint keep leaking?

Usually a fitting barb size mismatched to the hose diameter, or a missing/inadequate hose clip – check both before assuming the hose itself is faulty.