Abstract: A system for coupling conduit sections includes a coupling tool with a pair of lever arms pivotally interconnected and each mounting a clamp assembly. The clamp assemblies are adapted for releasably clamping the conduit sections. A coupling has a generally tubular configuration with a throughbore with multiple annular internal ribs. A coupling method includes the steps of clamping first and second conduit sections with respective clamping assemblies, placing the conduit section ends against the coupling throughbore ends, and squeezing the tool lever arms together whereby the conduit section ends are inserted into the coupling throughbore in fluid-tight sealing and pull-out resistant engagement.