Two differently sized insulated copper tubes with brass flare nuts on a white background, AI-generated detail illustration with the NEXNICE logo.

Mini Split Line Set Size Chart: 5 Diameter Pairs Compared

A mini split-line set size chart is useful for identifying a pipe pair. It becomes misleading when the same chart assigns that pair to every unit of a particular capacity. The required sizes come from the specified indoor and outdoor equipment combination, not from a universal BTU rule. The five pairs below compare actual copper […]

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