Field tested and proven successful for over 30 years.

Single Pump Compressor
Suitable for up to 2-acre ponds and produces up to 1.5 cfm.

A proven low-maintenance, low cost, highly effective method of maintaining water quality!

Buy with confidence, knowing that Koenders Windmills time-tested design features increase reliability, performance and safety.

4 tower heights to choose from
12′, 16′, 20′ or 24′

The Koenders Single Diaphragm Windmill Aeration System includes: 12′, 16′, 20′ or 24′ Windmill, Single Diaphragm Compressor, 100′ of Airline, Airstone Diffuser and Foot Valve. Up to a 3-year warranty.

Windmill Design Features:

The Koenders Windmill can be located up to approximately 1000′ from the water source.

Windmill Specifications
Capacity Up to 1.5 CFM (cubic feet of air per min.)
Turbine Type Upwind
Rotor Diameter 65″
Swept Area 23.05 sq. ft.
Blade Design Proprietary
Transmission Direct drive
Stroke 0.5″
Overspeed Protection Automatic
Foundation 3 ground rods; 1″ diameter pipe, 4′ long
Shipping Information
Product # of pcs Description Weight (lbs.) Dimension
H W D
12′ KFA 4 1 Head 39 25″ 10-5/8″ 15.25″
61″ stance 1 Blade & Tail 59 17.5″ 6.5″ 36″
1 8′ Tower section 52 48″ 3.75″ 3-9/16″
1 8′-12′ Tower section 27.5 48″ 2-3/8″ 3-9/16″
16′ KFA 5 12′ KFA plus
79″ stance 1 12′-16′ Tower extension 31.5 48″ 2-3/8″ 3-9/16″
20′ KFA 6 16′ KFA plus
97″ stance 1 16′-20′ Tower extension 39 48″ 3.5″ 3″
24′ KFA 1 1 20′-24′ Tower section 48″ 3.75″ 4″
118″ stance

Powdercoating:

Here’s a list of colors available:

Please call for pricing on custom colors, additional colors and all custom patterns or lettering.

We are dedicated to the design, testing and perfecting of our products.



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