The Thomas Dudley Hydroflo float valves are equilibrium quiet filling valves, manufactured to BS1212 standards. These valves are available with a side or adjustable bottom inlet ranging from 203.2 mm to 140.97 mm. They also feature either a plastic or brass tail option to help prevent cross-threading. The unique float arm design makes it impossible for the float to become detached. Filter removal is made fast and simple with an attached key for each diverter, ensuring no damage to the valve. This valve is an excellent replacement for any cistern.