Tools & Supplies Greenhouse and Tunnel Supplies Vents and Vent Openers
Vents and Vent Openers
Vents and Vent Openers
Maintaining proper ventilation is key to the success of greenhouse plants. It helps regulate temperature, provide fresh air for photosynthesis, discourage pests, and encourage pollination. Johnny’s offers greenhouse vents and openers that automatically open in response to temperature increases, so your plants stay in their comfort zone. Choose from models designed for greenhouse and cold frame applications.
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High Tunnel Vent w/ Auto Opener – 12" x 12" Vents and Vent Openers
Installs quickly into the plastic; no framing required.
Installs quickly into the plastic; no framing required.
Sale
Univent Automatic Vent and Window Opener Vents and Vent Openers
Universal, for greenhouse and cold frame applications.
Universal, for greenhouse and cold frame applications.
Sale
High Tunnel Vent w/ Auto Opener – 24" x 24" Vents and Vent Openers
Installs quickly into the plastic; no framing required.
Installs quickly into the plastic; no framing required.
Sale
Univent Automatic Opener Vents and Vent Openers
Keep your cold frame plants in their "comfort zone."
Keep your plants in their "comfort zone".
Sale
High Tunnel Vent w/ Auto Opener – 30" x 30" Vents and Vent Openers
Installs quickly into the plastic; no framing required.
Installs quickly into the plastic; no framing required.
Sale
High Tunnel Vent w/ Auto Opener – 18" x 18" Vents and Vent Openers
Installs quickly into the plastic; no framing required
Installs quickly into the plastic; no framing required
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