Toto TMT1NNC-32 - 1.6 GPF Manual Urinal Flushometer Only with Vacuum Breaker- Polished Chrome1. 6 GPF Manual Urinal Flushometer Only with Vacuum Breaker Polished Chrome Piston Advantage Solid bronze piston valve only one moving part Positive Seal No warpage or mis seals Self Cleaning Debris Screen No clogging no debris No valve resetting after water pressure loss No Scheduled Maintenance Reduce call backs no regular diaphragm replacement Consistent Performance Works with low(15psi) or high(100psi) water pressures Easy Retrofit Standard size