2Pcs Greenhouse Auto Vent Opener Cylinder, Solar Powered

★★★★★ 4.1 24 reviews

US$15.36
Price when purchased online
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US$15.36
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 250105168 Release Date 2026/09/17 List Price US$15.36 Model Number 250105168
Category
  • [Solar Powered Automatic Cooling] Harnessing sun energy to expand internal wax, this cylinder pushes greenhouse open at 60°F, releasing trapped hot air and preventing plant heat stress, then gently closes as temperatures drop for optimal climate control.
  • [Easy Swap for Old Cylinders] Designed as a direct replacement for standard greenhouse lift pistons, this 2-pack lets you quickly renew a stuck or weak opener without changing the whole frame, so your roof vents work reliably through the growing season.
  • [Precision Temperature Response] Engineered to activate between 60°F and 77°F, it maintains ideal daytime conditions while avoiding sudden cold drafts, giving seedlings and mature plants consistent warmth in spring and fall greenhouses.
  • [Dependable Maintenance-Free Design] No wiring or batteries needed, this mechanical piston operates silently with each daily , reducing the effort of manual propping and making it especially useful for remote garden beds and hobby hoophouses.
  • [Specifically for Greenhouse Ventilation] A practical upgrade for polycarbonate or glass hobby greenhouses, this vent cylinder fits most standard side and roof openers, helping gardeners maintain air during humid summer afternoons and mild autumn mornings.
ASIN B0DFR5NJ82
Color #300
Brand Name Tnfeeon
Manufacturer Tnfeeon
Model Number Tnfeeonr4va1suc2w
Item Highlight Temperature-Driven Expansion Pushes Open for Cooling, Spring-Closed When Cooler, Easy Swap for Old or Stuck Units, Ideal for
Item Type Name Greenhouses
Manufacturer Part Number Tnfeeonr4va1suc2w

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24 ratings | 10 reviews
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