Brass female elbow compression fitting with wing is made of one brass body, one brass o-ring and one brass nut. Because nickel plated before fine finishing,the color of body surface is silvery white and the thread of nut and body is brass color. Just one end of fitting can connect pipes and the other side can connected with fittings or pipes with male thread. It also used in the corner. The process of production is forging, shot blasting, fine finishing, assemblying, testing and packing. The color of whole product is brass color. They are used to connecting for both pex-al-pex pipe and pex pipe, from size 1216 to 4050. The size of male tread is from 1/2 inch to 2 inch. They can be used for hot and cool water-supply system and civil heating system. The compression fittings are easy to install,just tighting the nut to the body, without any special tools,so which make them easy to be replaced.The most advantage of this fitting is that it can be fixed on the wall, which makes it easy for the whole tube circuit to be fixed.