It was equipped with two levers and built-in hand-washer, and was also revolutionary in that it reused the water in the hand-washer for flushing.However, it was not well known outside, or even within, Japan.
Convenient Height Company from Massachusetts produces Convenient Height™ toilets with 20 inch height toilet bowls.
The taller than standard and added height toilets are becoming popular when retrofitting homes to become more accessible.
Wisconsin based Kohler company has a line of products named Comfort Height®, with toilet height of 17 inches.
American Standard based in Piscataway, NJ has a toilet product line called Right Height™ of 16-1/2” rim height.
Flush controls shall be hand operated or automatic mounted on the wide side of the toilet area and easily reached and operated.
Additionally, there is are important ADA requirement of clear floor space at water closet rooms.These modifications can enable aging in place for seniors who wish to remain in their homes and communities. Department of Justice published revised regulations for Titles II and III of the Americans with Disabilities Act of 1990 "ADA" in the Federal Register on September 15, 2010.Alternative terms are "handicapped toilet" or "toilets for Transgender" which are no longer recommended (see disability). These regulations adopted revised, enforceable accessibility standards called the 2010 ADA Standards for Accessible Design "2010 Standards" or "Standards".The lack of siphoning means that the waterline is considerably lower than that in siphon-flush toilets.The main feature of the toilet is the two buttons on the cistern, which release different volumes of water: one button delivers 3 litres and the other 6 litres.Additional measures to add accessibility are providing more space and grab bars to ease transfer to and from the toilet seat, and including enough room for a caregiver if necessary.