The Small Flush Mount back box is designed to match
"Miniguard" entry units and the Small Backlit Directory
in appearance and durability. They allow the standard
units to be mounted flush into a wall. In Emergency
Telephones, the Small Flush Mount back boxes are sized
to fit the Telalarm HF-2, HF-2BB, HF-2TB and the
Teledial IIa and IIh. The cutout dimensions for the
Small Flush Mount back box are 4¾"W x 12.4"H x 2.55"D.