Pre-filters fit on in the intake of the pump & provide a larger surface area which will capture more pond debris & need cleaning less frequently than the standard pump filter sponge. Pre-filters are purely mechanical & are usually used on smaller ponds.

Pre-filters fit on in the intake of the pump & provide a larger surface area which will capture more pond debris & need cleaning less frequently than the standard pump filter sponge. Pre-filters are purely mechanical & are usually used on smaller ponds.