I've got a couple of Monitor Tops and they still work - so I've never has to find gas or convert.
The Methly Chrolide gas is still used commercially and is available for commercial use only. It also used to be used in making leaded gasoline. Also known as - Monochloromethane, Methyl chloride, Artic, Freon 40, R 40, UN 1063, R10, R40, or R48/20
As far as the Sufur Dioxide does - it's still a common gas but not sold for refrigeration. It was known as R23 or R24.
There are some replacement gasses available - but all require a lot of work to install - e.g. changing the oil, the drier, etc.
Both the old gasses are toxic to a degree - but what isn't?
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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