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  • Bio Mech pond prefilter both mechanical and biological filtration!

Bio-Mech Submersible Prefilter

Warranty Information

  • Pond pump prefilter, with models for pumps up to 900 gallons per hour
  • Prevents pump clogging
  • Includes 2 inch thick internal filter pad for beneficial bacteria to colonize and provide biological filtration
  • Easy to clean
  • Lifetime warranty on fittings, grates and housings

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Free US shipping for orders $99 and over pond supplies and accessories

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Product Description

The Bio-Mech Submersible Prefilter provides mechanical and biological filtration. It works with any style of pump, preventing the pump from taking in large debris and possibly clogging. (Bio-Mech models 900 and 1200 require a pump with a threaded intake). Pump is not included.

Fitting inside the submersible prefilter's polyethylene housing, the included 2 inch thick filter pad traps algae particles and other debris. It also allows the growth of beneficial bacteria, which transform ammonia from fish waste into harmless nitrate.

Models 200, 600 and 800 of this prefilter are each round and designed for the pump you provide to sit inside, with the filter pad above the pump. Models 900 and 1200 are boxes made for pumps with inline inlets that can be connected to their housings. The box type prefilter models include adapter fittings for different pump styles; no adapter is needed for Cal pumps.

Available Models & Specs:

Model Dimensions Pond Size in Gallons Recommended Pump GPH
 5.5" diameter x 6.5" tall 25 to 200 50 to 150
10.5" diameter x 8" tall 150 to 600 150 to 350
12" diameter x 9" tall 250 to 800 225 to 450
15" long x 9" wide x 8" tall 300 to 900 225 to 580
15" long x 15" wide x 8" tall 600 to 1,200 300 to 900

Other Details

Recommended Pond Size:
0-2000 Gallons

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