Agriculture Solutions Univent Automatic Vent Opener Standard - Lifts 15 Lbs

Agriculture Solutions Univent Automatic Vent Opener Standard -

Ingenious temperature-sensitive devices 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 55-75°F, depending on how you have adjusted the vent. Strongly recommended for all our glazed season extenders because it dramatically improves plant growth. Screw directly into polycarbonate panels, wood, or metal frames. Use the Standard Vent Opener to lift up to 15 lbs, and the much stronger Gigavent, with all metal construction, to lift up to 65 lbs.

  • Brand: Agriculture Solutions
  • ASIN: B0083IZG0A

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.

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

Auto Vent Opener Automatic Greenhouse Vent Opener with Solar Power Sensor and Controllor

Auto Vent Opener Automatic Greenhouse Vent Opener with

Specifications: Greenhouse Window Opener Kit Material: Aluminum Alloy Maximum window opening: 45cm Maximum opening about: 30°, depending on adjustment and load Maximum opening weight: 7kg/15lb Adjustable open temperature range: 20°- 25°/68°-77F Size: 38 x 9.5 x 9.5 cm / 14.96 x 3.74 x 3.74 inch (appr.) 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: Aramox
  • ASIN: B07FNBTWPC
  • UPC: 715538588424

Standard Hydraulic Cylinder Replacement for Univent, Thermovent, Optivent, Ventomax, & Sesam Liberty Window Opener

Standard Hydraulic Cylinder Replacement for Univent, Thermovent, Optivent,

Replace your old (Univent, etc., Trademark) Piston Rod with genuine parts from Denmark, since 1981! Fresh from the factory, our turnover on this product is literally weeks from the manufacturer, giving you fresh wax and a dependable vent opener ready to replace your old or worn out cylinder/piston rod in these openers: OPTIVENT, UNIVENT, THERMOVENT, VENTOMAX, OR SESAM LIBERTY From the J. Orbesen Teknik Aps company out of Denmark: GREENHOUSE WINDOW OPENER replaces the J. Orbsen Teknik Openerw ONLY. REPLACEMENT CYLINDERS/PISTONS NO. 1 (W/O Thermometer). Due to many years of cooperation with greenhouse manufacturers, the installation of the cylinder is made very easy, and it fits most of our openers on the market. Apart from being used in our greenhouse window openers, the hydraulic cylinders are used in a wide variety of applications e.g. roof hatches; helicopters; power plants etc. Force push: 80 kg. Force pull: N/A. Stroke: 65 mm. Temperature, retracted: 17 ºC (62 F). Temperature, extended: 33 ºC (91 F). Color: Black INSTRUCTIONS: 1.) Place new cylinder in cool water or the refrigerator for 30 minutes. 2.) Remove old cylinder by undoing the hairpin clip and unscrewing cylinder and then check to see if your window or vent is moving freely. 3.) Reinsert new cylinder and replace h...

  • Color: Black
  • Brand: J. Orbesen Teknik Standard Hydraulic Cylinder
  • ASIN: B00RO8QBKE
  • UPC: 709998441009

BIBISTORE Solar Heat Sensitive Automatic Greenhouse Window Opener Hothouse Vent Openers Auto Vent Kit Garden Tools- (Two Springs,Lifts 15 Lbs,No Power Needed)

BIBISTORE Solar Heat Sensitive Automatic Greenhouse Window Opener

Material Upgraded  2-spring  Automatic Greenhouse Window Opener Technical Data 1.Fully opens up to 18" (45 cm) Lift vent weight up to 15 lbs (7 kg) 2.Open temperature adjustable from 15℃ to 23℃ (59℉ to 74℉); Fully open at 35℃ (93℉) or above Note: 1.Do not use your window opener where the temperature will exceed 60℃ ( 140℉ ), 2.Before installation, must ensure your window can be opened without obstacle; 3.Spare cylinders can be ordered separately

  • Brand: BIBISTORE
  • ASIN: B07P7VZV2C
  • UPC: 053554638922

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

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

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

Automatic Greenhouse Vent Opener

Automatic Greenhouse Vent

Automatically opens and closes your greenhouse window as the temperature changes. Complete kit, ready to install with easy to follow instructions. Fits most greenhouses. Unfortunately if you have one of the "trapped polycarbonate" type of greenhouse which are currently being sold on the internet there is nothing for the clamps to fit onto and these units will not be suitable for you. This opener is the latest in a line of THERMOFOR roof vent openers designed and supplied over the past 50 years. This model is an attractive cost effective unit with a unique opening action, ensuring a smooth twist free operation, and with the cylinder mounted within the bracket to eliminate projection in the greenhouse. It is finished in a durable polyester powder coating and is corrosion resistant throughout. Easily fitted to Aluminium and wooden greenhouses it will lift up to 7kg (15.45 lbs), i.e a vent weighing up to 14kg (glass area not exceeding 0.75m² in an aluminium frame), with a maximum opening of 35cm (14 inches). Manufactured in the UK by a company with 50 years experience of these vents - please do not compare with cheap far east copies.

  • Brand: VANTAKOOL
  • ASIN: B003NA0JG4

TOPINCN Greenhouse Window Opener Automatically Prevent Overheating Vent Autovent Solar Heat Energy Sensitive Automatic Greenhouses Roof

TOPINCN Greenhouse Window Opener Automatically Prevent Overheating Vent

Features: Prevent greenhouse overheating. 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 Material: Aluminum Alloy Fully adjustable between 20 - 25 ° C (68 - 77 ° F) Maximum window opening: 45cm / 18 inch Maximum opening weight: 7kg/15lb Size: 38 x 9.5 x 9.5 cm / 14.96 x 3.74 x 3.74 inch (appr.) Package: 1 x Automatic Window Opener Kit  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: TOPINCN
  • ASIN: B07MVTF2DF
  • UPC: 719527609534

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
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