HYDRO BAN Preformed Seat are components of the expanded HYDRO BAN line of waterproofing products that allow for high quality rapid shower installations. HYDRO BAN Preformed Seat are made from high-density expanded polystyrene with a waterproof finish...

Easily waterproof a shower. Screw panels to studs and tape the seams for an easy, light-weight, fully waterproof shower system.