✨Instant purchase welcome✨ ● I don't know much about this product, so I'll include the size!! It's a great deal for those who know about it!! Please, those who know, take a look. 【Product Description】 ● I believe this is an air conditioner and refrigeration accessory pipe adapter, but I don't know the details, so please check the images before purchasing. #AoiProductList uxcell 45-degree elbow copper fitting, connection for HVAC air conditioner, 60 mm x 45 mm, inner diameter 25.4 mm, 2 pieces (2-51)