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Formerly G M Inman (Aust) Pty Ltd which was established in 1975 has always been in the forefront of water treatment technology.

GMI has been a Culligan licensee for over 30 years is now renowned for its use of quality European/American equipment with service and installations second to none. Over the years GMI has carried out projects for some of Australia's major companies such as Cadbury Schweppes, Esso, Shell, Masterfoods, Symex and CSIRO as well as local goverment. GMI has long standing relationships with many of its clients some for 10 years or more.

GMI supply, install and maintain all types of water treatment equipment such as boiler softeners, ultra violet light, filtration, reverse osmosis systems and more.

Being a Culligan Licensee has helped GMI keep up with ever changing technical evolution by having access to engineers and support in the USA and Europe. Culligan has been in the industry for over 70 years and is one of the premier manufacturers and suppliers of quality water treatment products throughout the world.



From Instantaneous Cartridge Filters to High Flow Automatic Filters and everything inbetween...

Water treatment including Boiler feed systems, Cooling Tower filtration...


Automatic Chemical Control Systems ensure that pool and spa water remains...


Based on the ability of semi-permeable membranes to seperate dissolved solids from water.

Automatic Chemical Control Systems ensure that pool and spa water remains...


Investigate which filter system will suit your needs...

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