First Alert Hardwired 120V Ionization Carbon Monoxide and Smoke Alarm Brand_Culligan The high side walls keep

The high side walls keep tall bottles from tipping over while still being sized to fit under standard sinks

drop forged frame with bright galvanized finish

no additives

plastic lid to protect stone when not in use

First Alert Hardwired 120V Ionization Carbon Monoxide and Smoke Alarm Brand_Culligan The high side walls keepCarbon monoxide & dual ionization smoke sensor Separate visual and audible smoke and carbon monoxide indication to eliminate confusion Intelligent Sensing Technology for fewer nuisance alarms Smart 3 wire interconnect Quick Connect wiring harness for connection to AC power 85dB horn and 9V battery backup 2 silence features: Can silence the low battery chirp for up to 8 hours or temporarily silence an unwanted alarm Interconnectable with up to 18