

The K9FZ1818 Accessory for Mini-Split Systems is a specially designed Fittings Kit for 18 + 18 Indoor Combination. This kit enables the use of two ASU18RLF1 indoor units on an outdoor AOU36RLXFZ1. It upsizes linesets to 3/8" and 1/2", accommodating a total BTU capacity of 31,600 BTU in cooling. Installation requires special piping and is limited to only 18,000 BTU models.