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How Fluidmaster's 400LS Leak Sentry® Fill Valve Detects Leaks in Your Toilet

This video demonstrates how Leak Detection devices on Fluidmaster Fill Valves like the 400LSR or 400LS Leak Sentry® Toilet Tank Fill Valve. To watch how to install the Fluidmaster 400LS Leak Sentry toilet fill valve, please click here: 400LS Installation Video

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide