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Wow! The performance of my Elite Pumps is so much better than my old pump, I had to add a check valve to slow it down. Great pump, great price.
Helen C.

Elite OPTIMUS III 4000 Pond Filter

Elite OPTIMUS III 4000 Pond Filter
Elite OPTIMUS III 4000 Pond Filter

Elite OPTIMUS III Backwashing Pond Filters utilize OPTIMA bio-mechanical media!

Effective bio-mechanical filtration for koi ponds is dependent on the establishment of beneficial bacteria colonies on the biological media found within your pond filter. This “good” bacteria growing on your bio media converts dissolved toxic nitrogenous waste into harmless compounds, helping to provide optimal water quality needed for koi and other pond fish.

Elite OPTIMUS III Pond Filters are the only professional grade koi pond filtration systems on the market to utilize OPTIMA bio media. This proprietary bio media provides up to 7x more surface area than other media types commonly used in competitor filters. This superior bio media type effectively removes debris from your pond while also ensuring a healthy ecosystem.

OPTIMUS III Filters are by far the easiest pond filters to maintain. Backwashing your OPTIMUS filter takes only a few minutes. Powerful internal jets easily separate fish waste and other debris from the OPTIMA bio media without clumping, quickly separating waste and exporting it via the waste line.

The OPTIMUS III Filter is available in 5 standard models suitable for ponds up to 10,000 gallons and was designed specifically to handle heavy fish loads. Featuring a lightweight design, OPTIMUS pond filter are also designed to handle high flow rates – making them ideal for use in ponds with waterfalls.


  • Features OPTIMA bio-mechanical filter media (7x more surface area than competitor filters)
  • Works with low-amp pumps for maximum energy efficiency
  • Easy to clean backwash feature
  • Backwashing pressure filter may be placed anywhere on the discharge of the pump (perfect for retrofitting existing ponds)
  • Valve can be hidden in an artificial rock or valve box
  • Filter comes assembled with bio bead media and specially formulated bacteria (12 oz bottle)
  • Bio bead media is designed for use with koi and goldfish ponds
  • Pressure gauge to indicate when to backwash
  • 2” quick-connect fittings on all connections
  • 7 position valve system
  • 1” screened drain for winterizing
  • Affordable modular system (+6,000 gal/additional filter) yields greater flow with lower head loss
  • Full 2 year warranty
  • Heavy duty stainless steel screen prevents large debris from entering media and prevents accidental discharge of media during backwash
  • Optional above ground base and hose kit for in-line pump available
  • Elite 6000 Filter Dimensions: width =19", height =35.5"
  • Optional media agitator upgrade available

Elite 4 Filter Specifications:

SKU Description Pond Size (Gallons) Inlet / Outlet Dimensions
EO3F4000 Elite OPTIMUS III 4000 Pond Filter 4,000 2" / 2" 19" x35.5"