I have 2 cans available and have weighed them both.one weighs 360 grams and the other 458 grams.The age of the cans weights have changed. 

For use in central air conditioners, window units and equipment using R-22 refrigerant(NOT FOR USE IN AUTOMOTIVE APPLICATIONS)

ITEM WILL SHIP UPS GROUND.

(FREE SHIPPING TO LOWER 48 STATES ONLY)

YOU MUST BE EPA CERTIFIED TO USE THIS PRODUCT, OR YOU MUST BE  TRANSFERRING IT TO AN EPA CERTIFIED USER.WHEN PURCHASING THIS ITEM YOU AGREE TO THESE CONDITIONS.

I ________________________________ hereby certify that I am purchasing

R-22 for the purpose of being used by or reselling to an EPA certified technician. 

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