Great LakesŪ Aeration SystemsOur Great Lakes® Aeration Systems are complete and ready-to-go packages that include everything you need: lockable heavy-duty aluminum cabinet, efficient rocking piston air compressor and synergistic diffuser manifolds. DA1B and DA2B come with ALA4GLB 4-diffuser manifold (DA2B includes two) and unweighted or easy-to-install weighted tubing (see item descriptions below for which is included). Also available is the DA3B aeration system, which provides extra air in larger, deeper impoundments. In keeping with the benefits of the original systems, the DA3B is install-ready with all-weather cabinet, rocking piston air compressor and larger ALA6GLB 6-diffuser manifold. Weighted 5/8" tubing (WD1R, required for DA3B) is sold separately. Great Lakes® systems with self-weighted tubing do not require bricks or ties and install much easier and faster than systems with unweighted tubing. To keep from bringing electricity to the lake, the compressor can be located up to 1,000' away with additional P200S tubing. The sound-reducing, ventilated, weatherproof, heavy-duty cabinet is easily installed on a post, pier or boathouse. Or install on the ground with an additional base (DABASE). Instructions are included, and the entire unit can be shipped Ground. 115V/60 Hz. 230V systems require longer lead time. DA1B 
DA2B  
DA3B 
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