THE 3/4" 009M2 IS OBSOLETE. PARTS ARE AVAILABLE BUT THE CURRENT MODEL IS THE 009M3 OR LF009M3 IF YOU NEED TO REPLACE IT. THE 009M2 AND 009M3 3/4" ARE THE SAME BODY, THE CHECK VALVES WERE REDESIGNED. THE RELIEF VALVES ARE THE SAME BETWEEN THE M2 AND M3.