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First Alert Smoke & Carbon Monoxide Alarm is on Sale at Costco

First Alert 10 Year Smoke and Carbon Monoxide Alarm 2-Pack Costco

*UPDATE* 9/22/20. This is from the Costco OCTOBER 2020 Coupon Book (9/30/20 – 10/25/20). Slim, easy-to-install design is half as thick as standard alarms. Select Costco locations have the First Alert 10 Year Smoke and Carbon Monoxide Alarm 2-Pack on sale for $49.99 (after instant savings), from September 30, 2020 through October 25, 2020. That is $20 off Costco’s regular price of $69.99. While supplies last. Item #1299696.…