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BRK, 10 Year Sealed Battery/Hardwired, Battery Backup, Carbon Monoxide and Smoke Alarm - 787HC6|SC7010LBLV - Grainger
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BRK Hard-Wired w/Battery Back-up Electrochemical/Photoelectric Smoke and Carbon Monoxide Detector - Ace Hardware
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First Alert BRK Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
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