A small submerged biological filter is capable of filtering up to a 500 gallon fish pond. Installed on the inlet side of the pump using a 3/4" FPT port. Makes a great in the pond prefilter with a unique inlet that helps hold the debris in the filter when removing the unit from the pond for cleaning.
Suitable for goldfish or small koi. 18" x 14" x 6.5" Made in USA of high quality PVC material. Black color.