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Automatic Louver Opener

SKU# HG1033

UPC: 763552402462

The Automatic Greenhouse Louver Vent Opener was designed to automatically control the temperature and provide additional ventilation in all Rion and Palram Greenhouses from Poly-Tex. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural minerals that expand with heat to push a piston, which raises the window, as the air gets warmer then contracts as it cools, closing with the use of a spring. The Greenhouse Automatic Vent Opener operates without the use of electricity.

Side Louver Window for Rion Greenhouses sold separately.

List Price $79.99

Special Price: $72.00

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FREE SHIPPING(Excluding AK and HI)


  • Assembled dimension: 11" W x 2" D x 2" H.
  • Automatically control ventilation.
  • Protect your plants from heat exposure.
  • Easy to install.
  • Heat activated, no electricity necessary.
  • Requires a Louver Side Window.
  • Rion products are covered by a 7-year manufacturer's limited warranty.
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    Listed Specifications

    • Poly Tex
    • HG1033
    • 16
    • 1.00
    • 2
    • FedEx or UPS
    • 3


    • Easy Quick Setup

      Your Automatic louver Opener comes with easy-to-follow illustrated instructions for quick assembly.
    • Durable & Environmentally Friendly

      The Automatic louver Opener is built from quality materials for years of use.
    • Expert Advice When You Need It

      To keep Greenhouse panels working properly, we recommend rinsing your greenhouse a couple times a year with water. Wiping with a cloth and mild soap will improve the look and performance of your Greenhouse without worry of scratching or material damage. We recommend firmly anchoring your greenhouse to the ground in windy situations. Additional greenhouse growing tips include regulating temperature and humidity, ensuring proper air circulation, and getting to know the needs of your specific plant crops.
    • Lead Time

      Arrives in 1-2 weeks. An order for this product requires a day or 2 of order processing time followed by ground transit from the warehouse to your address. Typically that results in 5-10 business days of lead time.
    Please visit our knowledge center to learn more about our products and gain some expert advice about set up, maintenance, and product care. view

    Shipping Information

  • This product ships via FEDEX or UPS Ground.
  • You will get an email when it ships with your tracking information.
  • The product might arrive in multiple boxes.
  • You will NOT need to be home at the time of delivery.
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