The highest quality pressure vessel for residential and light commercial water softener/filtration applications.

Structural Poly Glass™ and Solid 316-Stainless Steel Tanks provide years of reliable service for water softener, well water and water filtration applications. These slim-diameter tanks hold up to 49 gallons of water and offers unmatched strength and chemical resistance.

All Poly Glass™ and Solid 316-Stainless Steel Tanks are backed by an exclusive 10-year warranty. 

Structure's patented manufacturing process creates a seamless polyester shell that is wound continuously with miles of fiberglass reinforcements and sealed with epoxy resin. Computer-aided winding machines and other customized equipment are used to create a product that offers outstanding performance and durability.

Structural pressure vessels provide cost-effective solutions for the most challenging applications. Using the latest technologies, Structural critically evaluates every design detail to ensure their products meet or exceed ISO, AMSE, NSF, & other agency standards.