Features This flexible, nonmetallic expansion joint can absorb pipe movement/stress to reduce system noise and extend system life. The corrosion-resistant plated carbon steel flanges rotate for quick installation. Expansion joint is ideal for use in HVAC, industrial piping, power generating, marine service, pulp and paper, water and wastewater, and pollution control applications Type / Single Sphere Pipe Size / 4 in Connection / Drilled Material / EPDM Bolt Holes / 8 Bolt Hole Size / 5/8 in -11 Bolt Circle Dia. / 7.5 in Flange Thickness / 0.71 in Max. Pressure / 225 psi @ 72 Degrees F Temp. Range / -50 to 230 Deg F Vacuum / 26 In Hg At 72 Deg F Outside Dia. / 9 in Overall Length / 6