2540 Watermaker Housing

2.5" x 40" FRP Watermaker Membrane Housing (1,000 PSI)

This highly durable 2.5-inch by 40-inch membrane pressure vessel is engineered specifically as the core component for high-pressure marine watermakers. Built to produce fresh, potable water at sea, this universal-style housing operates safely at maximum pressures up to 1,000 PSI. Constructed from non-corrosive fiberglass reinforced plastic (FRP) in a natural finish, this robust construction provides the exceptional structural integrity required by sailors operating in harsh, high-salinity maritime environments. Whether retrofitting an existing marine watermaker or custom-building a new desalination system for sailboats, luxury yachts, and long-range cruisers, this vessel ensures your equipment remains continuously protected and reliable during extended voyages.

Designed for streamlined assembly and routine maintenance in tight engine rooms, the housing features an end-entry configuration equipped with standard 1/4-inch feed, brine, and permeate ports. The engineering intentionally maximizes the physical separation between the permeate port and the feed/concentrate ports, allowing vessel owners and marine technicians to effortlessly integrate larger plumbing fittings during watermaker installation. The internal elements are secured using heavy-duty anodized aluminum retaining clamp locking devices and flush-mount end plugs—available in either anodized aluminum or acetal co-polymer with stainless steel backing plates. Complete with FDA-approved ethylene propylene O-rings, this American-made vessel guarantees a safe, leak-free seal for continuous, high-pressure watermaker operation on the open ocean.