The 12ft Base Windmill Aeration System is your off-grid solution for boosting pond health without the cost or hassle of electricity. Designed for ponds up to 1 acre and 30 feet deep, this system increases oxygen, reduces muck, and improves water clarity. The patented BalCam II compressor starts in just 3–5 mph winds, delivering up to 4.5 CFM of airflow with fewer moving parts for minimal maintenance. Constructed from 18-gauge galvanized steel, the 12ft tower supports a 73″ blade that self-governs in high winds. The complete kit includes: tower, windmill head, 1 airstone diffuser with check valve, 100′ of airline, and all necessary fittings. Easy installation with included hinges. Upgrade anytime with additional diffusers and airline for larger coverage.