WHALE Aquasource Water Filter 12mm Systems. Size: 308mm x 54mm. Silverised carbon filters designed to remove unpleasant tastes and smells from your water supply. Simple to install and maintenance-free. Removes unpleasant tastes and smells from water from inboard tanks Simple installation using clips supplied Maintenance-free design Can be mounted vertically or horizontally Suitable for use with Whale Quick Connect/ flexible pipework Lasts one full season or 4500 litres Installed in the freshwater plumbing pipework – usually under the sink Please note this is not a bacterial filter Maximum Pressure 4 bar (60 psi) To drain the filter for winterization Open all taps in the caravan Open the drain valve Tilt caravan so drain plug is lowest Let the water run out of the drain valve.