The Kona is a 54 In. x 30 In. x 15-1/4 In. bathtub - designed for space saving convenience. The Kona bathtub has a traditional design with a standard straight back support. Construction is one-piece heavy gauge seamless steel with an acid resistant porcelain enamel finish. The Kona weighs 63 pounds and is easy to transport and install into a bathtub alcove. The full length support pad offers added strength and sound deadening. This product is compatible or complies with ASME A112.19.1/CSA B45.2 (Standard for Enameled Steel Plumbing Fixtures), ADA (American Disabilities Act), ASTM F 462 (Safety Specification for Slip Resistant Bathing Facilities), WW-P 541 (U.S. Military Federal Specification), HUD-FHA-VA, LEED, and the Buy American Act, as applicable when installed accordingly.