The Heavy Duty Commercial seat offers a solid plastic open front seat design less lid to complement many bathroom styles. This seat features a bottom mounted Heavy Duty Check Hinge that fits most conventional toilets and a patented EverClean® surface that inhibits the growth of bacteria, mold and mildew. This Heavy Duty Commercial seat is tested for #500 lb. static weight load. Create your own look with the Heavy Duty Commercial seat from American Standard. Value pack comes in pack of 5 toilet seats to a box.