Why gamble with other cables when you can get the right one? Honeywell's 14 AWG / 4 conductor cable is specifically designed for use with any mini split system.
The cable wire allows for easy wiring from the indoor unit to the outdoor unit. Wiring is required when installing a new system. This THHN cable is PVC coated, is sunlight resistant and rated for direct burial. It is rated for 600V.
This item is a 250 foot roll.