Sight Plug, Body Material Brass, Connection Type Pipe Threads, Window Material Glass, Seal Material Buna-N, Reflector Material Stainless Steel, Window Features Fused Window, Reflector, For Liquid Clarity Clear, For Fluid Type Liquid, Thread Gender Male, Thread Size 1 1/4 In. -11 1/2, Hex Width 44 mm, Pipe Size 1 1/4 in, Thread Type NPT, Window Diameter 1 19/100 in, Maximum Operating Pressure 25 psi, Maximum Operating Temperature 180 Degrees F, Body Material Finish Zinc Plated. This item has been restricted from sale in the following state (s): []