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.

Stage 2 - Mechanical Filtration
Specially developed, profiled filter sponge pads will trap algae clumps plus other large particles and are easily rinsed for regular maintenance.

Stage 3 - Biological Filtration
After mechanical filtration, the pond water passes through Supra BioMedia (biological filter media) which possesses 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.

For more info click “Technical Specs”

• Combined UV and biological filtration for crystal clear water
• Filter colored green to blend in with natural surroundings
• Includes Supra Bio Media
• Flip up lid for easy maintenance
• "Frostproof" quartzless UV chamber
• Three year manufacturer warranty