Nexus EazyPod Complete Automatic is a self-cleaning, mechanical and biological filter system for garden ponds up to 10,000 litres. The integrated control box contains an adjustable timer which initiates a cleaning cycle automatically. Inside the control box of the EazyPod, the electronic connector blocks control the automated waste valve, along with your choice of circulating pump (not supplied), in addition to the integral air pump which kicks in automatically to clean the K1 Micro media. Crystal clear, healthy pond water is achieved by the use of the highly aclaimed Laldness K1 Micro filter media, which also provides enhanced biological benefits by way of its protected surface area. The EazyPod UV Automatic features an integrated 18 Watt UVC built in to the inlet section of the filter, helping to clear green water.