First Alert CO3-B01-T Battery-Operated Carbon Monoxide Alarm Floor Trim and Transitions snap lock hole saw mandrel

snap lock hole saw mandrel with 3/8" hex arbor

Male 15/16-27 or female 55/64-27 x male 3/4 garden hose

2 vertical vials (1 vertical vial on 16"/40 cm)

Dual USB charging ports charge most compatible electronic devices that charge via 5V charger adapter

First Alert CO3-B01-T Battery-Operated Carbon Monoxide Alarm Floor Trim and Transitions snap lock hole saw mandrelInstall the First Alert CO3 B01 Battery Operated Carbon Monoxide for reliable detection against carbon monoxide leaks. It's convenient maintenance features and flexible wall mount design makes it easy to add CO detection throughout your home. Easy access battery drawer for battery replacements Easy installation with flexible wall placement End of life warning lets you know when it's time to replace the alarm Product Overview Alerts you to CO threats