Pressurized UV Bio Pond Filter - 1000 gal.

This is a powerful combination of UV and biological filtration for crystal clear, purified water in one self-contained unit. It is easy to maintain and installs above or below ground level, features a green finish to blend in with natural surroundings and includes Supra Bio Media for thorough biological filtration. Good for ponds up to a 1,000 gallons in full shade, lightly stocked.Filtration stages:Stage 1: Algae Destruction - by slowly passing the single celled algae that cause 'green water' in front of UVC light, the algae is caused to clump together and start to die.State 2: Mechanical filtration - specially developed, profiled filter sponge pads will trap algae clumps plus other large particles and are easily rinsed for regular maintenance.State 3: Biological Purification - after mechanical filtration, the pond water passes through Fish Mate SUPRA Biological Filter Medium, possessing over 100 times the biological surface area of conventional plastic media. The specific structure of SUPRA enables rapid growth of aerobic bacteria resulting in removal of lethal ammonia and nitrite.Size:9.5" diameter x 11" high.