Toto CWT486MFG-2#011.6-GPF/0.9-GPF Maris Wall-Hung Toilet and In-Wall Tank System This item is a Toto CWT486MFG-2#01 Cotton Maris Maris Two Piece Elongated 1.6 GPF Wall Mounted Toilet with Dual Max Flush System In-Wall Tank System and Copper Supply Line - Less Seat Purpose of use for Plumbing Fixtures, Toilets and Bidets This product is manufactured in United States Dual-Max flushing system, low consumption Adjustable 15-Inch-19-Inch mounting height Copper supply line with optional Washlet connection Support up to 880lbs Commercial 2-Inch x 6-Inch or optional residential installation with 2-Inch x 4-Inch wall studs with waste outlet kit