Established in 1984, Protech Appliances (Mr. Butler) is Asia&＃39;s first and leading Home Sodamaker manufacturer. The Company&＃39;s history in the carbonation industry dates back to 1960&＃39;s when we developed one of the first CO2 manufacturing plants in the region. Having a good understanding of the domestic and commercial carbonation market, Protech Appliances developed the new Compact CO2 Refilling machine which is safe, easy to use, compact and practical.