1.28 gpf, Automatic Flush Valve, Polished Chrome, 1" IPSMfr #: 6147SM121. 002 Hands free infrared sensor operated gear actuator with chrome plated metal housing Angled sensor delivers reliable flush even with toilet seat in raised position Patent pending Dynalon wiper spring technology significantly reduces maintenance and downtime Self cleaning wiper spring cleans the refill orifice with every flush; prevents valve run on from clogging Prevents costly excess water usage and potential flooding