Torbeck Adjustable Bottom Entry Filling Valve is fitted to a toilet cistern to measure the amount of water used for a flush. It provides a fast refill of the cistern with a complete shut off after every flush. The bottom entry refill ensures minimal water hammer for a quieter refill. The valve is height adjustable from 8.5” – 11.5? and has a ½” brass connection. It has a built-in backflow prevention valve to prevent any contamination of fresh water. Suitable for high and low pressure systems.