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Otterbine Fractional Series


Otterbine Fractional Series

The Fractional five-in-one aerating system has the highest performance rate of any fractional aerator on the market and is efficient and cost effective to run. It’s also Otterbine’s best-selling aerator for maintaining water quality at healthy levels in small and medium sized ponds.

The ideal solution for ponds less than three quarters of an acre in size, this all-in-one fountain and circulator provides quality aeration as well as an attractive display. It can easily convert between four aerating patterns and a horizontal circulator in just minutes!



  • 1/2hp, single phase
  • Fractional series (quick disconnect pigtail)
  • Five chamber options in one unit - Gemini, Phoenix, Rocket, High Volume and Mixer
  • Ideal for smaller ponds of less than 1/2 acre
  • Corrosion resistant adjustable spray impellers/patterns to produce four spray patterns
  • Horizontal mixer (comes assembled as Gemini)
  • Rugged low visibility foam filled polyethylene float with recessed light pockets
  • Oil cooled, efficient 3250RPM custom built motor incorporates a silicon carbide single seal to ensure dependability and long life
  • Corrosion resistant, durable 18 gauge/316 grade stainless steel motor housing
  • Stainless steel brackets allow for easy conversion between aerating fountain patterns and mixer model
  • Adjustable discharge angle +/- 8 degrees (mixer model only)
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Power (voltage/phase/amp) 230/1/2.8


Spray height 3m
Spray diameter 40cm
Cubic meters p/hour (m3/hr) 41
Power (voltage/phase/amp) 230/1/2.6


Spray height Upper: 2.8m Lower: 1m
Spray diameter Upper: 30cm Lower: 3m
Cubic meters p/hour (m3/hr) 44
Power (voltage/phase/amp) 230/1/2.6

High Volume

Spray height 1m
Spray diameter 1.4m
Cubic meters p/hour (m3/hr) 99
Power (voltage/phase/amp) 230/1/2.8


Spray height 1.2m
Spray diameter 1.8m
Cubic meters p/hour (m3/hr) 115
Power (voltage/phase/amp) 230/1/2.8


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