SquareTank is an American manufacturer of composite body air tanks. Their unique design utilizes CNC-machined connecting rods, composite tubing, and square-shaped end caps. Made from billet aluminum, they are not only beautiful to look at but also super strong.
SquareTank's center tube is made from fiber-reinforced thermoset epoxy composite material. It has been rated for 200 PSI. You also have the option to get it in several finishes. SquareTank also offers several finishes for tanks—from glossy to painted to raw and everywhere in between.
Their tanks also have multiple ports in the end caps to allow users to show them off or squirrel them away for a complete stealth install. All their products are 100% manufactured and designed in the United States.