Included with STI-1210B and STI-1221BEnclosed backbox spacer with double-gang outlet box replacement for STI-1210B and STI-1221B
CompareSTI-1210BSounder/Strobe Damage Stopper® and Enclosed Back Box with Double-Gang Outlet BoxColours: Dimensions:216 mm H x 165 mm W x 89 mm DView Details
CompareSTI-1221BStrobe Damage Stopper® and Enclosed Back Box with Double-Gang Outlet BoxColours: Dimensions:216 mm H x 165 mm W x 89 mm DView Details
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