The pond equipment found in this pond kit is a perfect combination and contains liner, underlay, hose, clips, pump and filter... in other words everything you need to get started! This set contains the following components (please click links below for more information): • PondXpert 4m x 4m Flexiliner (40 year guarantee) with fleece underlay • PondXpert MightyMite 2500 pond pump • PondXpert SpinClean 4500 pressure filter • 5m (16\') x 25mm (1\") hose • 4 x 25mm (1\") clips * Saving based on price of buying components individually.