Product detailsA: 1*4*90 condenserA-fan: 1*4*90 condenser + 120 fanB: 2*5*120 condenserB-fan: 2*5*120 condenser +120 fan (27W, 220V)Copper tube outer diameter: 9.52 mmCopper tube inner diameter: about 8.9 mmThe condenser is a physical cooling, not coolingThis product is suitable for aembly and modification of compreor heat diation, equment cooling, computer water cooling, various industrial air cooling, water cooling, refrigeration, heating, heat diation, oil cooling, etc. It is also suitable for various DIY modifications. There are several specifications and sizes. Please chethe size and other data before buying. The product supports factory welded joints (ex charge). If you need joints, please contact customer service