Alpine's Bio-Pureï¾™ Pressure Filter is ideal for pond owners wanting simplicity, clear water, and a filter system that can be easily hidden. Bio-Pureï¾™ is available with and without an Ultra Violet Clarifier (UVC). Features: Multi-stage biological and mechanical filtration process provides maximum pond filtration Large foam surface provides increased filtration and beneficial bacteria to thrive and naturally clean pond pollutants Unique external pressure indicator shows green when filter is performing properly and shows red when filter cleaning is necessary Meant to be partially buried Pressurized filter is ideal for use with waterfall applications Offered with and without UVC filter with clarity UVC significantly increases the performance of your filter with clarity Universal connectors fit 3/4" to 1-1/2" tubing 2 Year Warranty (media excluded) 

Specs: Filter Capacity (Gallons) 3000 Pond Size (Gallons) 4000 Inlet/Outlet 3/4", 1", 1-1/4", 1-1/2" UV None