The SB-I/O Surface Mount Back Box is for use with the PS-SA and PS-DA models of pull stations. In addition to being molded out of increased UV stabilized polycarbonate material (94V-O), the SBI/O's mounting holes and bottom conduit entry are molded with a thin wall of material to provide improved outdoor weatherability.Features:UL Listed for indoor and outdoor applicationsMolded Self-Sealing Mounting BossesCSFM ListedSnap Latches for Easy Installation of the Pull StationTwo Reinforced 1/2" NPT Connector Outlets (One Plug Included)Single-gang Electrical Box Mounting Holes (Knockout)Four #10 x 1.00" Mounting Screws IncludedGeneral InformationName: Silent Knight Mounting Box for Pull Station, Honeywell International, Inc, Silent KnightCategory: Fire-lite Alarms By Honeywell, Fire, Fire Accessories, More Fire AccessoriesUPC Code: 783008105433Country of origin: Mexico. Country of origin is subject to change.