Clean and Healthy Water

The TetraPond Submersible Flat Box Filter efficiently clears your pond of dirt and debris. This unique design helps to reduce pump and fountain c...

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Clean and Healthy Water

The TetraPond Submersible Flat Box Filter efficiently clears your pond of dirt and debris. This unique design helps to reduce pump and fountain clogging and fits many different pond pumps. The Submersible Flat Box Filter is easy to open and clean and features a 1 Year Limited Warranty.

How it Works

flat box filter
  1. Water is drawn into the flat box filter.
  2. Water passes through a coarse and a fine foam mat, removing particles.
  3. Water is drawn into the pump.
  4. Clean water is discharged into the pond through the fountain or waterfall.
  5. Fountains and waterfalls provide beneficial aeration to the pond.

What's in the Box

flat box components
  • Filter Box
  • Filter Pads (coarse and fine foam)
  • Tubing (12" x 1" internal diameter)
  • Filter-to-Hose Fittings (1" thread w/ 1" hose barb)
  • Tubing Fittings for connecting to pump inlet: 3/4" male thread w/ 1" hose barb; 1" male thread w/ 1" hose barb; 1-1/4" male thread w/ 1" hose barb

More Great Pond Products

Koi Vibrance, Goldfish Multi Mix, Pond Sticks, Pond Flakes, Vacation Food
5 watt, 9 watt, 18 watt, 36 watt
AquaSafe, Filter Starter, Water Clarifier, KoiVital, Sludge Reducer, Algae Control
Water Garden Pump, ClearChoice BioFilter, BioActive Pressure Filter, Flat Box Filter, Waterfall Filter


  • SUBMERSIBLE FILTER: Flat box filter prevents pump from clogging and keeps pond water clear and clean.
  • PARTS INCLUDED: Coarse and fine foam pads, tubing and three hose fittings.
  • CONVENIENT: Attach to various pump inlets – easy to detach for cleaning.
  • WARRANTY: Includes a 1-year limited warranty – see product packaging for details.
  • USAGE: Ideal for use with ponds up to 500 gallons.
  • SUBMERSIBLE FILTER: Flat box filter prevents pump from clogging and keeps pond water clear and clean.
  • PARTS INCLUDED: Coarse and fine foam pads, tubing and three hose fittings.
  • CONVENIENT: Attach to various pump inlets – easy to detach for cleaning.
  • WARRANTY: Includes a 1-year limited warranty – see product packaging for details.
  • USAGE: Ideal for use with ponds up to 500 gallons.

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