The Zurn Wilkins 1-1/4" Pressure Reducing Valve NR3XLDUC is a double union pressure reducing valve designed for water media. It has an inlet diameter of 1 1/4 inches and an outlet diameter of 1 1/4 inches. This valve is suitable for use in various industrial and plumbing applications where precise water pressure control is required. With the trusted Zurn brand and reliable performance, this pressure reducing valve is a valuable addition to any system requiring efficient pressure adjustment.