Moen Commercial introduces its new M•Dura heavy-duty manual flush valves with AccuSet piston technology, which requires virtually no maintenance or replacement parts for the life of the flush valve. AccuSet piston technology is ideal for all commercial applications, regardless of water pressure variances and usage rates. AccuSet can successfully operate with pressure as low as 15 psi, so fluctuations are less likely to cause malfunctions. AccuSet piston technology features a self-cleaning filter to protect the seals against clogs and damage from line debris.