The PondMaster Mini Skimmer works differently then most other skimmers because it is placed inside of the pond, in the water, rather than going through the liner. The Mini Skimmer can have the pump connected to either the right or left side of the skimmer, or even at the bottom. Pre threaded holes are already there and included are adapters for 1/2" and 3/4" NPT inlets. The PondMaster Mini Skimmer can be installed in most new or existing ponds. The pump sits outside the skimmer in the water and comes with a hanger strap for easy installation inside of the pond. The liner does not have to be cut and is UV resistant for longevity. Its compact size makes it easy to conceal and has a lift out strainer basket for easy service. Skims surface debris and leaves from the pond. It is designed for small water gardens and koi ponds up to 1000 gallons. The skimmer works with pumps ranging from 700 gph to 1800 gph. Dimensions are (L x W x H) 12.5" x 10.5" x 11.5"