Our Pressurized Biological Filter and our Pressurized Biological Filter with UV Clarifier uses green coarse and fine filter. Both of these filter pads usually need to be changed once a year. Our Replacement Pads Pack includes both types of pads; the coarse black pad that collects large debris from your pond and the fine blue filter pad that picks up the smaller particles.

　　- Extends the life of pump

　　- Allows pump to work efficiently

　　- Replacement filters for PF850 and PF1200UV models (models not included)

　　- 12-month filter life