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The AIRTEK AC-Dual 20 is a fully automatic automotive AC service machine that handles both R-134a and R-1234yf refrigerant. You pick the vehicle's gas and the machine switches over itself, with no component changes, then runs recovery, vacuum and recharge on its own using a built-in vehicle database. That dual-gas, no-swap design is its main edge over single-gas stations, which need a second unit or a conversion kit to cover newer 1234yf cars. It suits shops and busy techs who service a mix of older and late-model vehicles.
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Rated 4.9 out of 5 across 64 ratings, buyers are highly satisfied. They single out the automatic dual-gas operation and the easy switch between R-134a and R-1234yf.
The AIRTEK AC-Dual 20 is a fully automatic automotive A/C recovery and recharge machine that works with both R-134a and HFO-1234yf refrigerants. No components need to change to switch from one gas to the other. The user chooses the vehicle's refrigerant and the machine prepares itself to operate.
It performs recovery, vacuum, oil injection, charging, tank filling and a vacuum leak test. A built-in refrigerant and oil database and a thermal printer are included. Software control prevents injecting the wrong oil. Oil injection is for non-EV and non-hybrid vehicles.
It has two tanks, plus two condensers and cooling fans, one set for R-134a and one for HFO-1234yf. Switching between R-134a and HFO-1234yf systems takes about 10 minutes. The machine pipeline is fully evacuated for a refrigerant change, which minimizes refrigerant loss. It services domestic and foreign vehicles, including electric and hybrid vehicles.