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Windmill / Fountain / Pond Aerator Parts + Tune-Up Kits

Reliable parts to keep fountains, aerators, and windmills running strong.

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56 products

Rocking Piston Kit for Gast Compressor Pond Aerator for 1/4, 1/2, and 3/4 HP compressors

Pond Aerator Part

Rocking Piston Kit for Gast Compressor Pond Aerator

Regular price From $79.95
Sale price Regular price
Windmill Valve Kit two-way 1/2-inch brass selector valve for balancing airflow in pond aeration systems

Windmill Aerator Part

Windmill Valve Kit | Two-Way Selector | 1/2"

Regular price $87.95
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Pond Aerator Repair Kit for Matala rocking piston aerators, restoring airflow and oxygen circulation.

Pond Aerator Part

Pond Aerator Repair Kit | Matala

Regular price From $89.95
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Font'N-Aire Pond Fountain Propeller Tune Up Kit for 1HP–5HP fountains to restore performance and extend motor life.

Pond Aerator Part

Font'N-Aire Pond Fountain Impeller Tune Up Kit

Regular price $94.35
Sale price Regular price
Galvanized windmill tailfin replacement for pond aeration windmills, restoring proper wind alignment and reliable performance.

Windmill Part

Windmill Tailfin | Galvanized

Regular price $109.95
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Garden Windmill Fan with 27 inch galvanized replacement blades for outdoor windmills.

Garden Windmill Part

Garden Windmill Fan | 27" Replacement

Regular price From $129.95
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Garden windmill fan 30-inch galvanized steel replacement for large ornamental windmills.

Garden Windmill Part

Garden Windmill Fan | 30" Replacement | Galvanized

Regular price From $139.95
Sale price Regular price
Garden Windmill Head Assembly with 27-inch galvanized steel fan and precision bearings for smooth, quiet rotation on OWS backyard windmills

Garden Windmill Part

Garden Windmill Head Assembly | 27" Fan

Regular price From $139.95
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Windmill Hub Assembly made from heavy-duty steel with black powder-coated finish for Outdoor Water Solutions pond aerator and yard windmills.

Windmill Part

Windmill Hub Assembly | Steel | Black

Regular price $142.95
Sale price Regular price
Garden Windmill Head Assembly with 30-inch galvanized steel fan blades for smooth backyard windmill rotation

Garden Windmill Part

Garden Windmill Head Assembly | 30" Fan

Regular price From $149.95
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Maintenance Kit for Windmill Pond Aerator

Windmill Aerator Part

Maintenance Kit for Windmill Pond Aerator

Regular price $149.95
Sale price Regular price
Garden Windmill Fan Replacement – 30-inch red-tipped wooden fan with sealed bearing hub.

Garden Windmill Part

Garden Windmill Fan Replacement | 30" | Red-Tipped

Regular price $159.95
Sale price Regular price
Garden Windmill Head Replacement with 27-inch fan, galvanized steel, weather-resistant, compatible with Outdoor Water Solutions windmills

Garden Windmill Part

Garden Windmill Head Replacement | 27" Fan

Regular price From $179.95
Sale price Regular price
Windmill Retrofit Kit with 2-inch pivot tube adapter mounted on an old-time windmill tower for modern pond aeration

Windmill Aerator Part

Windmill Retrofit Kit | 2" Pivot Tube Adapter

Regular price $179.95
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12V solar compressor delivering 2.8 CFM for solar pond aeration.

Pond Aerator Part

Solar Compressor Part | 12v Brushed

Regular price $199.00
Sale price Regular price
Garden Windmill Head Replacement with 30-inch fan, fully assembled galvanized steel head for outdoor yard and garden windmills

Garden Windmill Part

Garden Windmill Head Replacement | 30" Fan

Regular price From $199.95
Sale price Regular price
Pond Fountain Float 32 inch Eco Series made from UV-resistant black polymer with a 1.5-inch threaded center for stable floating fountain support.

Floating Pond Fountain Part

Pond Fountain Float | 32" Eco

Regular price $199.95
Sale price Regular price
Garden Windmill Fan Replacement with 40-inch red-tipped blades for Outdoor Water Solutions wood tower windmill

Garden Windmill Part

Garden Windmill Fan Replacement | 40" Fan Only | Red-Tipped

Regular price $199.95
Sale price Regular price
Bearing Replacement Kit for Gen 2 and Gen 3 windmill aeration compressors with OEM-fit bearings and flanges.

Windmill Part

Bearing Replacement Kit | Gen 2 and 3 | OEM Fit

Regular price $209.95
Sale price Regular price
Garden Windmill Head Assembly with 30-inch red-tipped fan, complete replacement head for Outdoor Water Solutions wooden garden windmills, built for durability and smooth rotation.

Garden Windmill Part

Garden Windmill Head Assembly | 30" Fan | Red-Tipped

Regular price $229.95
Sale price Regular price
Garden Windmill Head Replacement with 40-inch red-tipped fan

Garden Windmill Part

Garden Windmill Head Replacement | 40" Fan | Red-Tipped

Regular price $249.95
Sale price Regular price

Floating Pond Fountain Part

Pond Fountain Pump | Eco

Regular price $495.00
Sale price Regular price
12V brushless solar compressor for pond aeration, compatible with Outdoor Water Solutions DD Solar 2 and DD Solar 3.

Pond Aerator Part

Solar Compressor Part | 12v Brushless (No Controller)

Regular price $499.00
Sale price Regular price
Windmill Head, hub, cap & Tail replacement for pond aeration systems with heavy-duty galvanized blades and universal 1-inch shaft fit

Windmill Part

Windmill Head Blades, Tail, Hub and Cap

Regular price $729.95
Sale price Regular price
Pond Aerator Compressor Kit by Gast with oil-free rocking piston compressor for reliable continuous-duty pond aeration.

Pond Aerator Part

Pond Aerator Compressor Kit | Gast

Regular price From $729.95
Sale price Regular price