CHEAP R-12 automotive A/C substitute
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The cheap alternative to R-134a
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A/C RECHARGE WITH COMPUTER AIR DUSTER !!!
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Air Conditioning Explained - How It Works and How To Fix It, R12 to R134a Conversion - Volvo 740
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ENVIROSAFE refrigerant automotive air conditioning AC kits for r1234yf r134a r12 cars. 2092473954
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DANGER ! R-290 IS A HIGHLY FLAMMABLE REFRIGERANT
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Tips for converting or retrofitting A/C systems from R12 to R134a-Rick's Shop
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Follow-up to recharging a car A/C with R152A duster spray - seven years later...
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