"FLAT TYPE FIRE PROTECTION SPRINKLER ESCUTCHEON; 0.500 IN THD SIZE; O/D 2.750 IN; STD DEPTH 0.125 IN; SURFACE MOUNT, ONE PIECE DESIGN; OUTER CUP DEPTH 1.062 IN; OUTER CUP O/D 3.062 IN CENTER ADAPTER RING DEPTH 0.719 IN; ADJUSTMENT RANGE 0.500 IN TOTAL W/0.250 IN MAX RECESS AVAILABLE"