The RIDGID 48448 1/2 inch Press Ring for Megapress Fittings is designed to mechanically press MegaPress and MegaPressG fittings onto 1/2" commercially available black iron pipe, schedules 5 through 40. The RIGID 48448 ring is compatible with RIDGID compact press tools (RP 240, RP 241, RP 200, RP 210, RP 100). It has been jointly designed and tested with Viega, ensuring total system compatibility.