Home Slickdeals Rachio 3 Smart Sprinkler Controller, 12-Zone $149.99. Costco Valid 03/25/22 through 04/03/22... Slickdeals Rachio 3 Smart Sprinkler Controller, 12-Zone $149.99. Costco Valid 03/25/22 through 04/03/22 (Online) By ARCOM - 26 March 2022 76 0 SHARE Facebook Twitter Go to the deal page: Rachio 3 Smart Sprinkler Controller, 12-Zone $149.99. Costco Valid 03/25/22 through 04/03/22 (Online)