If you’re planning a DIY multi-zone mini split in 2026, Zone Air and MRCOOL...
https://wiki-global.win/index.php/Should_I_Label_Each_Line_Set_on_a_Multi_Zone_System_or_Is_That_Overkill%3F
If you’re planning a DIY multi-zone mini split in 2026, Zone Air and MRCOOL offer solid options that balance efficiency and ease of install