Excel Dryer Xlerator recess kit meets ADA protrusion requirement of 4 inches. Construction: wall box is fabricated of 22 gauge 18-8 type 304 stainless steel with #4 satin finish with 16 gauge 18-8 type 304 stainless steel dryer mounting plate. All welded construction. Designed to recess any Xlerator high speed energy efficiency hand dryer. Meets ADA protrusion requirement of 4 inches. Backed by a 1-year warranty. Made in the USA. Rough wall opening measures 14-1/2-inches width by 24-3/8-inches height by 4-inches depth. Measures 16-3/8-inches width by 26-inches height by 3-3/8-inches depth, 12 pounds.