Kampa Damp Buster Moister Trap made especially for caravans but also ideal for motor homes, summer houses, beach huts, boats, sheds, conservatories and home. With it's extra large 5 litre capacity - can be left for months without checking. As moisture is drawn from the air, it collects on the surface of the crystals and then drips into the bottom of the container.
The Calcium Chloride Crystals (CaCI2) absorb water vapour from the air. Absorbs up tp 3 times its own weight in water, each 1kg refill bag can absorb up to 3.5 litres of water and lasts up to 4 months.