M18 Force Logic press rings provide a solution that takes the advantage of press vs. sweat to the max. Pressing 2-1/2 in. to 4 in. pipes using a unique to Milwaukee 2 - hinge design provides quality connections in close quarters. M18 press rings deliver quality press connections on Viega ProPress systems, Elkhart APOLLOXPRESS , and Grinnell G-Press copper systems large diameter copper systems.