The MRCOOL DIY-12-HP-C-115D25-O is a 12,000 BTU, 115V outdoor condenser designed for the MRCOOL DIY 5th Generation single-zone ductless mini-split heat pump system. It works with a compatible indoor air handler to circulate R-454B refrigerant, transferring heat outside for cooling and reversing the cycle for heating. https://www.partshnc.com/diy-5th-gen-single-zone-mini-split-diy-12-hp-c-115d25-o