Home Slickdeals Nest 3rd Gen Learning Thermostat (Black) $219.99 – $80 = $139.99 +... Slickdeals Nest 3rd Gen Learning Thermostat (Black) $219.99 – $80 = $139.99 + FS @Costco By ARCOM - 28 November 2019 153 0 SHARE Facebook Twitter Go to the deal page: Nest 3rd Gen Learning Thermostat (Black) $219.99 – $80 = $139.99 + FS @Costco