The steps to add R410a refrigerant into a mini split that has lost its charge.
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Amazon Link to Mini Split 5/16" to 1/4" Adapter: https://amzn.to/3OuyRl1
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https://www.hvachowto.com/how-to-add-r410a-refrigerant-to-a-mini-split-that-has-a-low-charge/
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