R1/4 size fittings for air piping, unused. Product Code: 4977292422611 Body Size (cm): 4.5 x 1.6 x 13 Thread Diameter: ● Connection thread: Male thread R(PT)1/4, Female thread Rc(PT)1/8. Features: This is an intermediate reducing nipple socket for air piping. Applications: Air piping fittings (intermediate reducing nipple socket). Product Description: Connects hoses, pipes, and equipment of different diameters in the same direction. Applicable Fluid: Air Maximum Working Pressure: 1.5MPa