Oase Aquaskim 40 pond surface skimmer Powerful & effective for removing debries of the surface of your pool Through a two-part telescopic tube it is infinitely height adjustable.In addition the float automatically bridges water level differentials up to 160 mm, which can easily occur due to rainfall or strong evaporation. Simple height adjustment, no tools required. Minimun height 537mm Maximum height 787mm The lower part of the tube has a telescopic nut for convenient adjustment. Even adapting to low water levels is possible. A smaller tube diameter ensures less air content and thus prevents the surface skimmer from floating. Recommended flow rate: 4000-16000 l/hr The Skimmers foot comfortably accommodates 10kg of anchoring material, ensures absolute stability of the Oase Aquaskim 40.