The American Standard 16T988 is an automatic flush valve for toilets. It features a chrome plated body with a polished finish and has a flush cycle of 1.6 gallons per flush. This flush valve is ADA compliant and meets standards for low lead content. It has an adjustable tailpiece that fits 2" top spud toilets. The flush valve is designed for commercial applications and high traffic restrooms. It requires a minimum water pressure of 25 PSI to operate properly. The flush valve comes with a 5 year limited warranty from American Standard.