These are strictly for pond aeration to prevent fish kill, algae growth, stratification, and mosquitoes. Surface pond aerators agitate and aerate the water efficiently. No display. Diffusers (bottom aeration) aerate and de-stratify deep ponds. Circulators face the pump horizontally, thus creating steady circulation of water while using little electrical energy. Often it is best for a pond owner to use a combination. Call us.
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