Photo 1 of 2PC Greenhouse Automatic Vent Opener, Solar Heat Sensitive Greenhouse Window Opener Automatic w/ Strong Dual Spring (Up to 30lbs) Greenhouse Vent Opener for Hothouse Gardening Tools No Power Needed

Double tap image to zoom

Photo 1 of 2PC Greenhouse Automatic Vent Opener, Solar Heat Sensitive Greenhouse Window Opener Automatic w/ Strong Dual Spring (Up to 30lbs) Greenhouse Vent Opener for Hothouse Gardening Tools No Power Needed