Fluidmaster 400LS Leak Sentry Pro Fill Valve Fluidmaster leak sentry toilet fill valve - 181069 This is highly durable This is manufactured in United states Locking action alerts users to leaks before money and water are wasted Ideal for multi-housing applications Toilet remains fully operational Bowl refill adjustment prevents wasteful overfilling All the features of the proven 400A Fill Valve (1554-3143)