Hozelock Bioforce Revolution Filter Kits Type_Water Test Kit The LED light features a The LED light features a curved underside which helps to keep moisture off the surface Due to the small size of this item it is not suitable as a permanent living space for your animal and should be used as a temporary shelter that can easily be moved as necessary The Wildlife Protection System reduces the risk of damage to common pond wildlife The Bioforce Revolution Systems feature all the benefits of a standard pressure filter system but also benefit from the use of CypriCube foams with +50% surface area ensure clear water and facilitate an easy cleaning mechanism