Charles Austen Air Compressors Charles Austen air compressors/Pumps are ideal for sewage treatment systems, Hydroponics, koi pond aeration and aquaculture applications. Other applications include aeration for spa's/whirlpools, rainwater harvesters, cellar emptying, swimming pool emptying, flood prevention and fuel cell manufacture. Charles Austen Air pumps have an oil-free linear diaphragm air compressor/blower. It is very quiet whilst in operation with no vibration. It is supplied in
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