Residential Design & Build Product Guide

400LS PFO Toilet Fill Valve with Leak Sentry

Fluidmaster's new 400LS PRO Toilet Fill Valve with Leak Sentry is designed to stop undiscovered water waste. It works by preventing the automatic refill of a leaky toilet tank, so leaks are reported quickly. Once a leak has drained the tank, a locking action forces the user to have to inconveniently press the flush lever twice, once to refill the tank and once more to initiate the flush. The Leak Sentry also halts repeated refills of leaky tanks in unoccupied rooms. Only one tank of water can escape a 400LS-equipped toilet.