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  • Becker 20ft Windmill Aerator System for Ponds - Part Number BWM20W
  • Becker 20ft Windmill Aerator System for Ponds - Part Number BWM20W

Becker 20ft Windmill Aerator System for Ponds


20' Four Legged Windmill Kit with 50' of Poly Tubing, 100' of Weighted Tubing, and (1) QS2 Quick Sink Diffuser

Let mother nature aerate your pond with a Becker Windmill aerator system. Windmill aerators are ideal for aerating remote ponds with no electricity nearby. The Becker Windmill system includes a stable four leg design, a 6 feet diameter head with 12 blades that operate in winds as low as 5 miles per hour, and produces 2.4 to 5 cfm at up to 40' deep depending on air speed. Becker Windmills have been Made in the USA since 1970!

Made In USA

Ships in 10-15 Business Days

$3149.99MSRP: $3500.00

Item #:BWM20W

Manufacturer: PondPlus+

Becker 20' Windmill System Includes:

  • 20' Tall Windmill Aerator
  • 50' of Poly Tubing to get from Windmill to Pond's Edge
  • 100' of Weighted Tubing
  • (1) QS2 Dual Head Quick Sink Diffuser
  • 48'' long anchor stakes
  • Base hinge set for easier installation and ability to lower tower for maintenance or impending storms

Becker 20' Windmill BWM20W Specifications:

  • Stable four leg design
  • Long-lasting, reinforced neoprene diaphragm
  • 6' diameter head with 12 blades
  • Operates at wind speeds as low as 5 mph
  • Produces 2.4 to 5 cfm depending on air speed
  • Aerates up to 40' Deep
  • Effective aeration for up to 2 acres depending on pond shape and depth
  • Includes over speed protection - tail section will turn head in high winds preventing over spinning
  • Overall height: 23', Base Stance: 7' square

Becker Windmill Advantages


  • Large, 72" diameter fan wheel with 12 tapered blades that are engineered to start turning at wind speeds as low as 5 mph. The blades are also designed to develop high power in strong winds.
  • Reinforced Diaphragm - The piston diaphragm assembly is 60% larger than other brands. In conjunction with the 72" blade assembly, it will pump 60% more air into your water than other brands.
  • Automatic Over-Speed Protection - The tail design keeps the windmill facing directly into the wind. When wind speeds reach 30 mph, the tail forces the fan wheel to turn 12°-15° away from the direct wind so that it cannot operate over-speed.


  • 16 gauge galvanized steel tower for strength and durability.
  • Advanced Anchoring System - At the bottom of each tower leg is a 6-bolt anchor stake clamp. The anchor stakes are 1" steel tubes pinched at both ends. The anchor stake slides down through the clamp as you drive it into the ground. This anchoring system allows you to level your tower as you tighten the clamps.
  • Reinforced Diaphragm - Reinforced neoprene diaphragm that is die-cut for accuracy and longevity.
  • Heavy-Duty Crankshaft and Bearings - The crankshaft is made of high strength, 1045 TGP steel. Bearings are permanently grease-sealed and are designed for heavy load capacity.


  • Design is that of classic windmills so it looks right at home anywhere.
  • Low Maintenance - All Becker Windmills are designed with ease of assembly and low maintenance in mind. We're so confident in the quality that we offer a 5 Year Limited Warranty on all our windmills!

Becker 20ft Windmill Aerator System for Ponds Downloadable Documents