Isfahan Plast’s 90 degree flanged tee has three outlets of equal size and is used to change the angle and branching of the pipe or polyethylene welded joints. In fact, it can be said that the difference between the equal polyethylene flanged 90 degree tee and the normal tee is that it is no longer for connecting It does not require welding and can be attached to the pipe with bolts and a flat washer.