Pond skimmers are essential for a clean healthy pond. They skim off and trap leaves and other debris before they have a chance of settling to the bottom to create a sludge mess. They also protect the pump from solids that can clog the pump.
Extension Tube for PSA5000/PSA7000/PSA9000 EasyPro Axiom skimmers allows for the skimmer to set back from the pond liner 24". This is a great feature when using a concrete liner instead of a rubber liner.