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Old 06-06-16, 06:55 PM   #4
Xringer
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Join Date: Feb 2009
Location: Woburn, MA
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How about a leak detector?
Freon Leak Detector Refrigerant Halogen R134a R410A R22A Bag Air Condition HVAC | eBay

SODIAL(R) Freon Automatic Halogen Leak Detector R134a R410a R22a Air Conditioning HVAC - - Amazon.com

Do these things really work?
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