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Photo of Automatic Vent Opener, Greenhouse Supplies


Automatic Vent Opener


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SKU: 70011-00-00

Protect your greenhouse, cold frames and tunnels from overheating!
This automatic vent opener is a great way to insure your plants do not over heat in you greenhouse or cold frame. Easily attaches to greenhouse vents and cold frames to automatically open when it gets to warm inside. The opener operates automatically and can be adjusted to open at temperatures between 60-77° F. No batteries or electricity needed.




ABOUT OUR COMPANY

Harris Seeds began operation in 1879 from the efforts of Joseph Harris, who was successful in selecting only the highest quality vegetables and grains. The company gained popularity because of his basic business philosophy: "Offer customers a quality product at a fair price and they will return." READ MORE

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355 Paul Rd.
P.O. Box 24966
Rochester, NY 14624

Phone: (800) 544-7938
FAX: (877) 892-9197

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