The Figure 6400 Rigid Coupling is specially designed to provide a rigid pipe connection to meet the specific demands of copper tubing installation size 2" - 8". Fast and easy swing-over installation of the rugged lightweight housing produces a secure rigid pipe joint. Available with Grade “EP” Copper EPDM flush gap style gasket. Gasket has service temperature range of -40°F to +250°F. NSF 61 Certified for cold +86°F (+30°C) and hot +180°F (+82°C) potable water service.