Size approx: ID 42mm, OD 56mm, H 25mm. Water inlet Radiator Filler Neck. 1 x Filler Neck. Breather thread:NPT1/16. Made of material, and practical to use. High Standard 6061 Aluminum. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
