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1-800-397-1392
Closed Until MondayWhat size refrigerant lines do I need for the 18000 BTU unit?
Thank you for your question. The size of line set that you will need is dependent upon your length requirements and the brand and model number of the 18000 BTU unit that you choose. Please give us a call at 1-888-376-7450, so that we may better assist you.