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3rd party study confirms that Koenders windmills have the best performance ratings in the industry!
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For running two or three diffusers off one aerator. Use the controls to manually balance airflow to compensate for the differences of diffuser depths. Available for both 3/8″ and 1/2″ Airline sizes. Windmills and EL2 Electric Aerators use 3/8″ Airline. HD Electric Aerators use 1/2″ Airline.
Testimonials
"Our pond brings a great deal of pleasure to me, thus I want to keep it algae and muck free especially in the hot summer months where pond water issues area more predominant. This year we had a very hot summer, extreme temperatures that got up into the high 80’s, low 90’s and with the use of Koender’s Nature’s Pond Conditioner and aeration windmill I was able to keep my pond algae and muck free. My goal has always been to prevent pond water issues from occurring as opposed to waiting until there is an issue."
Christene Sandeson
Brookfield NS