Univent Automatic Vent Opener Standard - Lifts 15 Lbs

Univent Automatic Vent Opener Standard - Lifts 15

UNIVENT Automatic Window Opener uses our powerful temperature sensitive hydraulic cylinder that has been in use for decades as the standard in reliability to open cold frames, windows, vents, doors, tunnels, hot houses and demi-lumes. The key features that differentiate UNIVENT is it's compact design, EASY-CLIP-SYSTEM, Double Spring Design, and now our Security Tape for closing the hinge up for winter. The innovative EASY-CLIP-SYSTEM makes it easy to rapidly disconnect one end of the opener without any cumbersome tools, simply undo the clip and have access to the inside of your opening, even in the closed position. The standard cylinder carries a Manufacturer coverage for replacement for 3 years, and replacement cylinders are also easily available to purchase. Material: Aluminum Maximum opening width: 17.5 inches Maximum opening temperature at 86 degrees F Maximum lift: 15 pounds Made in Denmark under the strictest quality standards in the industry. This is a professional and serious home and garden vent opener made by the same company in Denmark since 1978 by Johannes Orbesen and his world famous "Open Sesame" invention.

  • Brand: Univent
  • ASIN: B0083IZG0A

Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit for all Palram Greenhouses (Single Spring Vent Opener)

Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener

This very smart autovent uses energy from the sun and surrounding air. The autovents strong metal tube contains a mineral wax which expands with heat. This pushes a piston which opens the vent via a balanced linkage. As the temperature rasises, the vent will open. As the temperature drops, the wax shrinks and a strong stainless steel spring closes the vent and resets the piston. Things to remember: -Do not use this opener anywhere the temperature will exceed 60° (140f) -Please ensure your greenhouse window can be opened freely by at least 45cm (18") -Get the very best from your greenhouse plants and veggies - don't leave it to chance! Package included: - Automatic window opener x 1 - English manual x 1

  • Brand: Wiwir
  • ASIN: B071VYQ91P
  • UPC: 712073445618

Vent-L Automatic Vent Opener N03 Opening Temperature 75-90°F Load up to 66lb for Window/Doors of Greenhouse

Vent-L Automatic Vent Opener N03 Opening Temperature 75-90°F

Universal Automatic Vent-L for vents, doors, greenhouses and polytunnels Vent-L is a unique, versatile, reliable device that does not require electricity, and works only on the raising of temperature in your greenhouse.Vent-L will protect your plants in the sunny days in the heat and keep a comfortable temperature in greenhouses or polytunnels. Vent-L is a simple but reliable device that does not require special skills to install in a greenhouse. For installing vent opener it's enough to find support on the profile of greenhouse in distance of 450-500 mm (17-19 in) to the line hinges of the door or window, or set on the window or the door itself on mobile and stationary part. Vent-L can open your windows/doors at a temperature of 24°C(75°F) which is the most favorable temperature for the growth of plants.The maximum value of the open window or door is 32°C (90°F), which is critical for some plants, such as tomatoes (tomato pollen is sterilized).HOW DOES IT WORK? The basis of the device is a cylinder (we use hydraulic cylinders manufacturing in Sweden, according to the results of operation (3 years), there was no failure of the warranty). The cylinder filled with a special fluid, which is developed by engineers of "ONIKS". It expands under the heat and pushes on the piston rod...

  • Brand: Vent-L
  • ASIN: B06WRWZ514
  • UPC: 645490991423

TruePower Automatic Vent Opener Standard - Lifts 15 Lbs

TruePower Automatic Vent Opener Standard - Lifts 15

Automatically open and close cold frame lids, greenhouse windows and even skylights throughout the day and maintain a constant interior climate, something impossible to achieve by manual adjustments. Requires no batteries or electricity, it starts opening between 63-75°F, depending on how you have adjusted the vent.

  • Color: Black/Silver
  • Brand: TruePower
  • ASIN: B015GGXJY6

Yosoo Window Opener for Greenhouse Solar Heat Sensitive Automatic Vent Opener Lifts 15 Lbs

Yosoo Window Opener for Greenhouse Solar Heat Sensitive

Notes: Do not use this opener anywhere the temperature will exceed 50° (122F) Please ensure your greenhouse window can be opened freely by at least 45cm (18"") Do not apply excessive loads by locking or covering window Do not dismantle the cylinder The opener CANNOT stop by manual

  • Brand: Yosoo
  • ASIN: B07F3NPTHS
  • UPC: 763741973469

Asixx Auto Vent Kit, Solar Heat Sensitive Automatic Greenhouse Vent Opener Solar Greenhouse Vent Auto Vent Ideal for Your Greenhouse Window

Asixx Auto Vent Kit, Solar Heat Sensitive Automatic

Features: Ideal for your greenhouse window--opens and closes your greenhouse window. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating. Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. Can be clamped onto or screwed onto your greenhouse frame. Specifications: Greenhouse Window Opener Kit  Maximum window opening 45cm Maximum opening about 30°, depending on adjustment and load Maximum opening weight 7kg/15lb Adjustable open temperature range 15°- 25°/60°-77F Package: 1# Automatic Window Opener Kit / Replacement Greenhouse Window Opener Cylinder (You can choose what you want) Notes: Do not use this opener anywhere the temperature will exceed 50° (122F) Please ensure your greenhouse window can be opened freely by at least 45cm (18") Do not apply excessive loads by locking or covering window Do not dismantle the cylinder The opener CANNOT stop by manual Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.

  • Brand: Asixx
  • ASIN: B07H9PQB2H
  • UPC: 741870105371

Homesupplier Automatic Window Opener, Vent Opener, Window Control System with Wall Switch

Homesupplier Automatic Window Opener, Vent Opener, Window Control

Homesupplier automatic window opener for various window types. Package Includes: one motor (chain window opener), mounting brackets, and wall switch. We also provide several options for the window openers: 1. Powered by 100V-240V AC 2. Powered by 100V-240V AC with a wall switch 3. Powered by 100V-240V AC with a wall switch and remote control set 4. Powered by 24V DC 5. Powered by 24V DC with a wall switch.

  • Color: Silver
  • Brand: American Homesupplier
  • ASIN: B07M9XM3MZ
  • UPC: 650728381556

Palram Automatic Roof Vent Opener

Palram Automatic Roof Vent

The Auto Vent Kit conveniently opens the window vent in your Snap & Grow, Mythos, Essence or Grow & Store Hobby Greenhouse. It is easy to install and no electricity is required. There is a liquid in the cylinder that expands as the temperature nears 70 degrees causing the vent to open. As the temperature drops the vent will close. Let the Auto Vent do the work for you.

  • Brand: Palram
  • ASIN: B002IOJJF8
  • UPC: 728131178428

Bayliss Greenhouse Autovent, XL

Bayliss Greenhouse Autovent,

BAYLISS XL Autovent - full retail package Brand new stock available for immediate despatch. Offered with a manufacturer backed full 2 year guarantee. Opens greenhouse roof vents as the temperature rises, automaticaly closes as temperature drops. Automatic Greenhouse Window Opener, Simple, Strong & Easy to Fit. Made Entirely in the UK Easy to fit - Screws into wood and clamps onto aluminium greenhouses without the need for drilling. (Full fitting instructions supplied) Easy to set - one simple adjustment Solar powered - Non electric Strong build Loses no headroom Anodised aluminium construction - All parts corrosion resistant Spring controlled - Resists wind damage when opening and closing Quality assurance - All parts guaranteed for 2 years Suitable for opening hinged vents up to around 2ft square (600mm) of normal construction.

  • Brand: Bayliss
  • ASIN: B0027DJ5RM
  • UPC: 798256063701

Automatic Vent opener Vent-L N01 opening temperature 75-90°F of greenhouse load up to 220lb for window/doors

Automatic Vent opener Vent-L N01 opening temperature 75-90°F

Universal Automatic Vent-L for vents, doors, greenhouses and polytunnels Vent-L is a unique, versatile, reliable device that does not require electricity, and works only on the raising of temperature in your greenhouse.Vent-L will protect your plants in the sunny days in the heat and keep a comfortable temperature in greenhouses or polytunnels. Vent-L is a simple but reliable device that does not require special skills to install in a greenhouse. For installing vent opener it's enough to find support on the profile of greenhouse in distance of 450-500 mm (17-19 in) to the line hinges of the door or window, or set on the window or the door itself on mobile and stationary part. Vent-L can open your windows/doors at a temperature of 24°C(75°F) which is the most favorable temperature for the growth of plants.The maximum value of the open window or door is 32°C (90°F), which is critical for some plants, such as tomatoes (tomato pollen is sterilized). HOW DOES IT WORK?The basis of the device is a cylinder (we use hydraulic cylinders manufacturing in Sweden, according to the results of operation (3 years), there was no failure of the warranty). The cylinder filled with a special fluid, which is developed by engineers of "ONIKS". It expands under the heat and pushes on the piston rod...

  • Brand: Vent-L
  • ASIN: B01N5F12BH
  • UPC: 645490991461
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