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Fans & Ventilation

  • Waterproof Greenhouse Thermostat image against a white background
    from $69.95

    Waterproof Greenhouse Thermostat

    Reliable control - E3124 This quality thermostat will automatically control a fan system or heater. The moisture-proof case offers protection fro...

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    from $69.95
  • from $29.95

    Replacement Power Tube w/ Lock Washer for Bayliss MK7 Triple Spring

    Select temperature range: #1 Standard Tube Replacement for Bayliss Triple Spring & Hydraulicheck Solar-Powered vent openers (C3503 & C3509)...

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    from $29.95
  • from $59.50

    Mill Finish Economy Aluminum Shutters

    These are the most economical replacement shutters that are still made from aluminum ensuring no rust and years of service.  These are the perfect ...

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    from $59.50
  • from $199.95

    Greenhouse Shutter Exhaust Fan

    Need to be sure about your cooling? Exhaust fans are the most reliable way to get consistent cooling in your greenhouse.  It evacuates the hot stal...

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    from $199.95
  • $56.00

    Univent Automatic Vent Opener

    Multiple uses - C3515 This unique solar vent control will open and close roof vents, a cold frame lid, top-hinged wall vents, or even the greenho...

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    $56.00
  • A video guide on how to install the Mk7 Auto vent fitting in a greenhouse.
    $74.95

    Bayliss MK7 Triple Spring Solar Vent Opener

    Harness the sun for automatic ventilation! - C3503 The Bayliss MK7 Triple Spring solar vent opener is the best choice for top-hinged wall vents. It...

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    $74.95
  • $44.50

    Clip-On Fan

    FREE Shipping Portable air circulation - C3068 Simply clamp onto the greenhouse framework. Quiet, 2-speed operation gently circulates fresh air. 6"...

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    $44.50
  • from $94.95

    Knitted Shade Panel 60% Green

    Made in the Shade - C2151 Avoid plant-killing high temperatures in your greenhouse. Some shading is required during spring, summer, and early fall....

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    from $94.95
  • $19.95

    Replacement Cylinder for Orbesen Teknik Standard Solar Openers

    For use with C3515 Univent, 3527 Optivent, 3521 Sesam Spiro, 3511 Sesam Solarlift, C4000 Ventomax, and C3533 Liberty Louver Solar-Powered Vent Open...

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    $19.95
  • $129.95

    Wall Mount Oscillating Fan, 12"

    FREE Shipping Improve your air circulation - C3067 This handsomely-styled 3-speed, 12" fan provides the best type of air circulation. The oscil...

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    $129.95
  • $49.95

    Hard-Wire Fan Speed Control (weather-resistant), 120V, 5 amp

    Perfect Ventilation - E3131 Continuously variable solid-state control lets you select the proper exhaust fan speed and minimum fan starting speed f...

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    $49.95
  • $49.95

    Liberty Automatic Louver Opener

    For automatic ventilation - C3533 The Sesam Liberty solar-powered control will open and close a louver window as temperatures change, enhancing a...

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    $49.95
  • $135.00

    Heat Saver Fan

    Bring heat down to the plants! - C3086 This fan is specially designed to pull warm air off the ceiling and push it down to the floor. This provi...

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    $135.00
  • $99.95

    Bayliss MK7 Hydraulicheck Solar Vent Opener

    Heavy-Duty Control The Bayliss MK7 Hydraulicheck solar vent opener is the best choice for large roof vents and side-hinged wall vents. A built-in...

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    $99.95
  • Red Thermostatic Outlet
    $22.50

    Thermostatic Outlet

    Simple plug-in temperature control The Thermo Cube® is thermostatically controlled and turns power on and off automatically, according to outside a...

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    $22.50
  • from $124.95

    Lockknit Shade Fabric Kit, 60% density, green

    A low-cost option for shading your greenhouse! - C2064 Economical, lightweight, and easy to handle. Cut to any shape or size. It will not unravel. ...

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    from $124.95
  • $8.95

    BY THE FOOT - 12 ft wide Green Knitted Shade Fabric 60%, per linear ft

    Economical shading - C2028 Avoid plant-killing high temperatures in your greenhouse. Some shading is required during spring, summer, and early fall...

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    $8.95
  • Sale
    from $927.00

    Powered Ventilation System

    Automatically cool your greenhouse Powerful, forced air ventilation automatically cools your greenhouse when needed. The fan is matched with a sp...

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    from $927.00
    Sale
  • $49.95

    Table-Top Finger-Safe Fan

    Set this sleek fan anywhere you want to improve air circulation – bench, shelf or hang from a wall or rafter. It features an extra-safe, soft blade...

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    $49.95
  • $39.95

    Thermatic-Vent®

    Automatic cold frame vent - C3336 USES NO ELECTRICITY! Opens and closes by a temperature-sensitive spring mechanism. Range 40ºF to 70ºF. Install ...

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    $39.95
  • Out of Stock
    Original price $59.50
    Current price $56.00

    Bayliss XL Single Spring Vent Opener

    Simple, strong and easy to install Budget “clip-on” model lifting a load of up to 12 lbs. giving a maximum opening of approximately 12″. The unit m...

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    Original price $59.50
    Current price $56.00
    Out of Stock
  • A video demonstrating how to install the Bayliss MK 7 Auto vent on your greenhouse.
    $84.95

    Bayliss MK7 Orchid Solar Vent Opener

    For tropical greenhouses This Bayliss MK7 orchid solar vent opener control operates at a higher temperature than other similar openers, allowing ...

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    $84.95
  • from $144.95

    Knitted Shade Panel 87%

    This fabric blocks 87% of sunlight - C2155 Choose Forest Green or Gray Avoid plant-killing high temperatures in your greenhouse. Some shading is re...

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    from $144.95
  • from $129.95

    Knitted Shade Panel 65% Ulta Tan

    This fabric blocks 65% of sunlight - C2157 Avoid plant-killing high temperatures in your greenhouse. Some shading is required during spring, summer...

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    from $129.95
  • Out of Stock
    $69.95

    Solar Shutter Control Kit with Liberty Auto Opener

    Includes Liberty Opener, hardware, instructions - C3534 Automate our C3212 Heavy-Duty Aluminum Shutter* -- sizes 16", 18", 20", 24", and 30" -- to ...

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    $69.95
    Out of Stock
  • Plug in prewired humidistat positioned on its side
    $69.95

    Plug-In Pre-Wired Humidistat

    Easy to install - prewired - E3452 Automatically controls your humidifier or misting system. Ready to use:1. Plug humidistat into 120-volt outlet2....

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    $69.95
  • Sale
    from $422.00

    Economy Vent System

    Prewired Economy Vent Systems Low-cost, life-saving ventilation for your plants! Automatic fan reduces excessive heat on hot, sunny days. Set the...

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    from $422.00
    Sale
  • from $76.00

    Schaefer Long-Life Circulation Fan

    Efficient & Durable - C3043 This commercial quality, rugged, tapered fan will provide years of non-stop air circulation with a gentle breeze ...

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    from $76.00
  • Greenhouse Thermostat against a white background
    from $59.95

    Greenhouse Thermostat

    Reliable control - E3127 This quality thermostat will automatically control a fan system or heater. The moisture-resistant case offers protection...

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    from $59.95
  • An image illustrating how to use manual vent controls to keep a rooftop vent open
    $79.95

    Manual Vent Control

    With linear gear drive - C3535 Lift heavy vents or skylights with this precision-built vent control. Smooth running gears lift and hold vent at a...

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    $79.95
  • $229.00

    Shutter Motor for C3212 Heavy-Duty Shutter

    FREE Shipping For positive control of Charley's Heavy-Duty Aluminum Shutters - C3261 Assures maximum airflow by holding the shutter completely open...

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    $229.00
  • Sale
    from $649.95

    Lean-To Powered Ventilation System

    Automatically cool your sunroom - C3420 A narrow home-attached greenhouse will receive adequate fresh air from a single oversized intake shutter....

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    from $649.95
    Sale
  • from $1,076.45

    Snap Fan Solar Exhaust System

    Automatically vent excess hot air from your greenhouse with a fan powered by the sun! The Solar Exhaust Fan Kit includes everything you need to get...

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    from $1,076.45
  • Manual Vent Control Extension Handle displayed on a white background with a close-up of the hook part.
    from $54.00

    Extension Handle for Manual Vent Control

    For use with C3535 Manual Vent Control - C3537 Now reach those out-of-reach skylight operators or vent controls more conveniently. Telescoping for ...

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    from $54.00
  • Replacement Cylinder for Giga Vent Control displayed on a white background
    $68.00

    Gigavent Replacement Cylinder

    For use with Gigavent Control C3526 from Orbesen Teknik in Denmark. Cylinder color is black with ridges.  

    $68.00
  • A photo showing the use of the Giga Vent Control
    $154.50

    Gigavent Control

    Heaviest lifting capacity The ultimate solar vent control! Opens and closes vents weighing up to 65 lbs. A hydraulic safety damper prevents gusty w...

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    $154.50
  • from $294.00

    Schaefer Greenhouse Exhaust Fan

    Efficient ventilation - C3030 This durable fan motor is totally enclosed for resistance to greenhouse moisture. The wire mesh blade guard is viny...

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    from $294.00
  • Bayliss Super Solar Vent Opener displayed on a white background
    $198.00

    Bayliss MK7 Super Solar Vent Opener

    Heavy Lifting Capacity This larger, heavy-duty Bayliss MK7 Super solar vent opener is suitable for operating heavy, double-glazed greenhouse vent...

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    $198.00
  • Wall Thermostat - image of the front of the product against a white background
    $39.50

    Wall Thermostat

    FREE Shipping Economical control Automatic control for greenhouse fans or motorized vents. Fits standard recessed electrical wall box. Working ra...

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    $39.50
  • $877.00

    Aqua Fogger II

    Direct-Feed Fog Fan - M6226 Our compact atomizing fan provides humidity, evaporative cooling, and air circulation for areas up to 300 sq. ft.  Wate...

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    $877.00
  • Out of Stock
    $65.00

    Shade Stand-Off Kit

    For better air circulation - C2090 Provide extra cooling for your greenhouse by suspending the shade panel 9" above the ridge beam. This allows bet...

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    $65.00
    Out of Stock
  • $794.95

    Evaporative Cooler, 2800CFM

    Are you in a hot climate and need it cooler in the greenhouse than even the outside temperature? This Evaporative Cooler is here to help! It cools ...

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    $794.95
  • $99.00

    Megavent Control, aluminum color

    With a 26-lb. lifting capacity, twice that of standard solar openers, the Megavent is the best choice for heavier roof vents, side windows, and sky...

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    $99.00
  • from $92.00

    Weather Hood for Exhaust Fans & Shutters

    Weather protection Protect your shuttered exhaust fan and shutters against harsh weather and severe wind. Extend their life. Our galvanized-steel w...

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    from $92.00
  • Out of Stock
    $16.50

    Extra Center Support for Shade Stand-Off Kit

    Optional - For use with C2090 Shade Stand-Off Kit - C2092 Extra center support is needed for ridge beams that are 20 ft long in windy locations, an...

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    $16.50
    Out of Stock
  • $69.95

    Pre-Wired Fan Speed Control (weather-resistant, series plug, 120V, 5 amp)

    Portable Fan Control - E3139 Continuously variable solid-state control lets you select the proper exhaust fan speed and minimum fan starting spee...

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    $69.95
  • $99.95

    Bench Top Oscillating Fan, 12"

    FREE Shipping Low level air circulation for dense foliage - C3065 Prevent diseases that start in areas of stagnant air. This 3-speed, 12" fan s...

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    $99.95
  • $32.00

    Megavent Replacement Cylinder

    For use with Megavent solar-powered opener (C3530) from Orbesen Teknik in Denmark. Cylinder color is black, 1" diameter and smooth.

    $32.00