Expansion Joint, Bolt Circle Diameter 9 1/2 in, Bolt Hole Size 3/4 in, Bolt Hole Threading Unthreaded, Burst Pressure 800 psi, Compression Distance 1 19/32 in, Connection Type Flanged, Expansion Distance 51/64 in, Expansion Joint Type Single Bulb, Features Flanges Molded into Body, Retaining Rings, Flange Diameter 11 in, Flange Material EPDM, Flange Material Finish Not Applicable, Flange Material Grade Not Applicable, For Fluid Type Fluids with 20 Percent or Less Solids, Joint Material EPDM