The most-purchased windmill add-ons in one box, sized for ponds up to 1 acre: tower hinges for easy raising and lowering, weighted airline with hose connectors, an airstone housing bucket that keeps the diffuser out of the muck, and a duck decoy to mark its location. A sensible companion to any base-kit windmill purchase.
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Windmill Accessory Kit - Medium Pond
$499.95
Outfits a windmill for 1–2 acre ponds with a two-zone diffuser layout. Includes a second airstone with foot valve, a two-way selector valve to balance airflow between the two stones, enough weighted...
Windmill Compressor Bearings Kit
$34.95 - $189.95
Replacement bearings for the OWS windmill compressor. Choose the complete three-bearing replacement, or the individual side pillow-block or middle eccentric bearing if you're renewing a single worn...
Wood Windmill Anchor Kit
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Heavy-duty screw-in ground anchors purpose-made for wood-tower windmills installed on dirt or grass. Anchoring stops tilt and shift in storms and soft ground — protecting not just the tower but the...
Windmill Pressure Relief Kit - In-Line
$65.95 - $79.95
An all-steel in-line relief valve that protects the compressor when the airline freezes, clogs, or kinks. Instead of letting backpressure burn out the compressor, the valve vents excess air...