WATER SAVING Delayed filling prevents water entering the cistern until it has emptied. This means the optimum amount of water that the pan requires is used. Without this delay, the water from the next fill flows out as part of the flush, unnecessarily wasting water. We were the first company to carry out commercial trials of the AirGap and proved a saving of nearly 3 litres per flush. MEETING THE STANDARD The valve is fully compatible with the requirements of AUK1, the type AG Air Gap and is BS1212-4 certified. It is the first bottom inlet, height adjustable product to have achieved this.
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