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$30.29
Unit price per- Automatic Window Opener Prevent hobby greenhouse overheating
- Auto Open/Closed.The greenhouse window opener does not consume any power, no batteries or electrical power needed
- Ideal for your greenhouse window, wall and hobby vents in higher wind situations
- Starts opening between 59 - 77°F, Replaces manual vent arm
- Screw directly into polycarbonate panels, wood, or metal frames.
- Automatic Window Opener Prevent hobby greenhouse overheating
- Auto Open/Closed.The greenhouse window opener does not consume any power, no batteries or electrical power needed
- Ideal for your greenhouse window, wall and hobby vents in higher wind situations
- Starts opening between 59 - 77°F, Replaces manual vent arm
- Screw directly into polycarbonate panels, wood, or metal frames.