The machine designed for use R134a or HFO1234yf refrigerant. Do not mix different type of refrigerant, otherwise can easily lead to malfunction of the machine. Mul-function Internal Design : Built-in compressor: Enables accurate refrigerant recovery; Built-in electronic scale: Precisely weighing the refrigerant amount; Built-in filter: Oil and air can be automatically separated and collected through separate tubes to ensure separate recovery of vapor and liquid.
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