Slip-On Flange, Raised Face, 1 in Nominal Pipe Size, Flanged x Slip-On, 4 1/4 in Flange Outside Diameter, Stainless Steel, 316, Class Class 150, 150 psi Maximum Operating Pressure, -60 Degrees to 450 Degrees F, Number of Bolt Holes 4. This item has been restricted from sale in the following state (s): []