Leak Sentry™ Kit - Fill Valve 1/2", Flush Valve 2" & Top Button Kit
Complete simple replacement for top operated Flush valve & Fill valve
400UK 1/2" Bottom Entry Fill Valve
- 507 2" Outlet Flush Valve fits most toilet cisterns
- Chrome finished circular Top Flush Button
- Adjust A Flush™ Flapper dials for a custom Water Saving Flush
- Fits any toilet cistern with a 2-inch outlet
- Works efficiently with today’s 6 litre cisterns
- Ultra simple maintenance - simply snap on new replacement flapper if necessary
Leak Sentry™ - How Does It Work ?
When a leak starts to drain the toilet tank, a unique "locking" action prevents the 400UK Float Cup from dropping.
This forces the user to press the pushbutton twice. The first time unlocks the Leak Sentry™ System and lets the Float Cup drop and the tank starts refilling.
The second time will allow you to initiate the flush as normal. Even when the Leak Sentry™ System "locks" the valve before refill, the toilet remains fully operational.
Kit contains:
- 1 x 400UK Fill Valve
- 1 x 507 Flush Valve with 2" outlet
- 1 x 782 Chrome Finish Top Flush Button
- 1 x Leak Sentry™ device
- 1 x Installation sheet

Our valves can be adjusted to limit the water used for each flush. Think smart and install a Fluidmaster product in your cistern.