These units are meant to be used in ponds
up to 10 feet deep.
Air diffusers (bottom aeration systems, bubbler aerators) aerate
by forcing air through a diffuser membrane.
The bubbles rise from the bottom of the pond taking oxygen depleted
water to the surface to mix with oxygen rich water.
Air diffusers can be used all year long to aerate and will keep
an opening in the pond during the winter for water fowl and other
Linear compressors are amongst the quietest
These units are energy efficient (1.4 amps / 75 watts) and generally
cost less to operate than surface aerators.