MRCOOL DIY 50ft 3/8" x 5/8 " R410A Line set 0.375-in W x 0.625-in H Central Air Conditioners Line Set

DIY 50ft 3/8" x 5/8 " R410A Line set 0.375-in W x 0.625-in H Central Air Conditioners Line Set. The quick connect line set comes pre-charged,and sealed from the factory with the correct amount of R410A refrigerant. 50ft quick connect line set 3/8x5/8 quick for DIY mini split 24K and 36K air handler. Compatible with the R410A refrigerant DIY single and multi-zone units. Easily extend your line sets by connecting two with a simple DIY coupler for custom lengths up to 75ft. For separate purchase, the compatible coupler to extend two line sets is DIYCOUPLER-3858K75C. Not compatible with the R454B refrigerant DIY single and multi-zone units