New Mrcool Air Conditioner Line Set. Priced over $288 elsewhere. Quick connect comes pre-charged and sealed from the factory with the correct amount of R-410A refrigerant. Compatible with the DIY single and multi-zone units. Can combine using DIY coupler to increase the desired length of the line sets. 25ft quick connect line set, 3/8×5/8 quick for DIY mini split 24k,36k.