Photo 1 of CHANGE MOORE Auto Vent Opener Automatic Greenhouse 2Pack Window Opener Roof Vent Opener Auto Vent Kit Sensitive Gardening Tools Automatic Greenhouses Supplies (Dual Spring Up to 33lbs)

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Photo 1 of CHANGE MOORE Auto Vent Opener Automatic Greenhouse 2Pack Window Opener Roof Vent Opener Auto Vent Kit Sensitive Gardening Tools Automatic Greenhouses Supplies (Dual Spring Up to 33lbs)Photo 2 of CHANGE MOORE Auto Vent Opener Automatic Greenhouse 2Pack Window Opener Roof Vent Opener Auto Vent Kit Sensitive Gardening Tools Automatic Greenhouses Supplies (Dual Spring Up to 33lbs)