Profile: Charles Austen Pumps Ltd. is a manufacturer of vacuum pumps and compressors for use with air, gas, and liquids. Our OEM pumps are used in blood pressure monitors, exhaust gas analyzers, and condensate removal systems. We manufacture laboratory pumps from simple air pumps for filtration applications, through to ATEX approved chemically resistant pumps for use in potentially explosive environments. They are used for fume extraction, gel drying, rotary evaporation, dosing, and food processing. Our bowlers are designed for use in sewage aeration applications. The range includes both the environ air pump for situating outside the sewage treatment, and the SW range which is submersed in the media for removing the waste water after treatment. It is used for aeration of koi ponds and whirlpools, rainwater harvesters, cellar emptying, swimming pool emptying, flood prevention, and fuel cell manufacture. Our hydroponics are used in air and liquid pumps in varying flow rates from a single tank or home growing system, up to aeration for large koi ponds & fish breeders.