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Hi Greens, It uses R600a. Isobutane, also known as i-butane, 2-methylpropane or methylpropane. It is an isomer of butane. Isobutane is a colorless, odorless gas. Material gas is much safer that Freon. It’s becoming increasingly popular due to its low Global Warming Potential. Renee, Insignia Support
Sorry, there was a problem. Please try again later.Not sure the name but it's a relatively new one that all freezers and refrigerators use now. It's environmentally friendly.
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