Brass compression female elbow fitting with wing is made of one brass body, one brass o-ring and one brass nut. The color of the whole body is yellow. 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 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. The process of production is forging, shot blasting, fine finishing, assemblying, testing and packing. The color of whole product is brass color. The compression fittings are easy to install,just tighting the nut to the body, without any special tools,so which makes them also easy to be replaced.They can be used for hot and cool water-supply system and civil heating system.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.