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Tetra Pond BP-4000 Large Bi0Active Pressure Filter

Tetra Pond  BP-1500 Small Bi0Active Pressure Filter

Tetra Pond BP-4000 Large Bi0Active Pressure Filter

SKU : TET26565



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ClearChoice™ Pressure Filter Selection Guide
Max Pond Size:
Up to 1500 gal
Up to 2500 gal
Up to 4000 gal
Minimum Flow Rate:
2500 gph
2500 gph
2500 gph
Recommended Pump Size:
2500-4500 gph
2500-4500 gph
2500-4500 gph
15.875" Dia x 18.75" H
15.875" Dia x 22" H
15.875" Dia x 25" H


1-1/4" - 1-1/2" Step-down Barbed Connectors 1-1/4" - 1-1/2" Step-down Barbed Connectors 1-1/4" - 1-1/2" Step-down Barbed Connectors

For maximum flow use with 1-1/2" ID tubing.

New from Tetra, the Bio-Active pressure filter has been re-engineered for maximum bio filtration resulting in a clear and healthy pond. New vortex internal pumping jets ensure maximum water-to-media contact to support bacterial growth and provide for superior bio-activity. The rugged construction of this filter is built to last. The unique open profile bio-activators will not clog and give you the most surface area possible. With no foam to clog, the simple back flush feature keeps your filter performing in peak condition with no need to open the filter for cleaning.

Each pressure filter is sold as either a stand-alone unit or with an integrated UV clarifier to provide permanent control of suspended algae and reduce green water. 


  • Maintains clear and healthy water
  • Includes a one step back flush cleaning system for no hassle maintenance
  • Biologically reduces ammonia in ponds
  • Quick to install and can be hidden in the ground
  • Built to last with durable components and materials
  • For out of pond use only
  • Water is pumped from a pump (not included) in the pond up to the filter then back to the pond   from the filters discharge.
  • All three ports are 1-1/4" BSP
  • Filter has 1-1/4" - 1-1/2" Step-down Barbed Intake and Discharge. Connect using our 1-1/4" or 1-1/2" Non Kink Spiral tubing.
  • Includes very thorough directions
  • UV Light Not Included (See the PB-1500UV Model for Filter with Integrated UV)
  • Backed by a 2 year limited manufacturer's warranty 

  • Includes: Bio media rings in media bag, back-flush outlet cap, 1-1/4" to 1-1/2" Step-down Barbed adapter for back-flush port and 1-1/4" to 1-1/2" Step-down Barbed Adapters for Intake and discharge ports.