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Juliana Greenhouse Univent Window Opener JU124

Juliana Greenhouse Univent Window Opener JU124

Juliana Greenhouse Univent Window Opener With the Juliana automatic window openers you can be sure of an even temperature in your greenhouse day and night. To be continuously controlled from 62-73�� F (17-23�� C). Features: -Made for use with...

at Wayfair

Exaco RIGA Auto Opener - Automatic Window Opener

Exaco RIGA Auto Opener - Automatic Window Opener

Exaco Trading RIGA Greenhouses are the latest in a series of hobby greenhouses from Germany's most respected greenhouse manufacturer. The Exaco Trading RIGA was designed with the homeowner in mind. Its shape allows for maximum inside head room, yet... ... more

Exaco RIGA Auto Opener - Automatic Window Opener

Exaco Trading RIGA Greenhouses are the latest in a series of hobby greenhouses from Germany's most respected greenhouse manufacturer. The Exaco Trading RIGA was designed with the homeowner in mind. Its shape allows for maximum inside head room, yet...

Amazon.com

$71.29

FREE shipping

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Double Spring Heavy Duty Automatic Greenhouse Window Opener. Opens Roof Vents and also Top Hung Side Vents

Double Spring Heavy Duty Automatic Greenhouse Window Opener. Opens Roof Vents and also Top Hung Side Vents

This quality greenhouse vent opener automatically opens and closes your greenhouse window as the temperature changes. This model is fitted with a heavy duty double spring mechanism designed for use in exposed locations or on lightweight polycarbonate... ... more

Double Spring Heavy Duty Automatic Greenhouse Window Opener. Opens Roof Vents and also Top Hung Side Vents

This quality greenhouse vent opener automatically opens and closes your greenhouse window as the temperature changes. This model is fitted with a heavy duty double spring mechanism designed for use in exposed locations or on lightweight polycarbonate...

Amazon Marketplace

$49.79

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Set of 2 Roof Window/Vent Opener for Greenhouses (NO TEMPERATURE CONTROL)

Set of 2 Roof Window/Vent Opener for Greenhouses (NO TEMPERATURE CONTROL)

This heavy duty greenhouse window/vent opener uses a hand operated thumb knob to open and close greenhouse windows. The automatic temperature control does NOT function on these units. ... more

Set of 2 Roof Window/Vent Opener for Greenhouses (NO TEMPERATURE CONTROL)

This heavy duty greenhouse window/vent opener uses a hand operated thumb knob to open and close greenhouse windows. The automatic temperature control does NOT function on these units.

Amazon Marketplace

$19.95

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2 x Bayliss Mark 7 Greenhouse Window Auto-Vent Openers

2 x Bayliss Mark 7 Greenhouse Window Auto-Vent Openers

This is a pack of two Bayliss Mk.7 autovents. These autovents automatically opens and closes hinged vents. The autovent uses energy from the sun and surrounding air, the hotter the temperature the wider the vent will open. The Bayliss MK7 Autovent is... ... more

2 x Bayliss Mark 7 Greenhouse Window Auto-Vent Openers

This is a pack of two Bayliss Mk.7 autovents. These autovents automatically opens and closes hinged vents. The autovent uses energy from the sun and surrounding air, the hotter the temperature the wider the vent will open. The Bayliss MK7 Autovent is...

Amazon Marketplace

$111.20

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Greenhouse Window Stay Kit - Replacement Roof Vent Opener Bar Set

Greenhouse Window Stay Kit - Replacement Roof Vent Opener Bar Set

This is a kit containing 1 x 250mm window opening bar, 2 x pegs and 6 x stainless steel nuts and bolts to fit the vast majority of greenhouse windows, (roof vents). There are some greenhouses which have a thin slam bar and flat pressed pegs which these... ... more

Greenhouse Window Stay Kit - Replacement Roof Vent Opener Bar Set

This is a kit containing 1 x 250mm window opening bar, 2 x pegs and 6 x stainless steel nuts and bolts to fit the vast majority of greenhouse windows, (roof vents). There are some greenhouses which have a thin slam bar and flat pressed pegs which these...

Amazon Marketplace

$14.14

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Green Powder Coated Greenhouse Window Stay Kit - Replacement Roof Vent Opener Bar Set

Green Powder Coated Greenhouse Window Stay Kit - Replacement Roof Vent Opener Bar Set

This is a kit containing 1 x 250mm green window opening bar, 2 x pegs and 6 x stainless steel nuts and bolts to fit the vast majority of greenhouse windows, (roof vents). There are some greenhouses which have a thin slam bar and flat pressed pegs which... ... more

Green Powder Coated Greenhouse Window Stay Kit - Replacement Roof Vent Opener Bar Set

This is a kit containing 1 x 250mm green window opening bar, 2 x pegs and 6 x stainless steel nuts and bolts to fit the vast majority of greenhouse windows, (roof vents). There are some greenhouses which have a thin slam bar and flat pressed pegs which...

Amazon Marketplace

$15.80

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Automatic Greenhouse Vent Opener

Automatic Greenhouse Vent Opener

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... ... more

Automatic Greenhouse Vent Opener

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...

Amazon Marketplace

$38.06

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Exaco RIGA Auto Opener - Automatic Window Opener

Exaco RIGA Auto Opener - Automatic Window Opener

Exaco Trading RIGA Greenhouses are the latest in a series of hobby greenhouses from Germany's most respected greenhouse manufacturer. The Exaco Trading RIGA was designed with the homeowner in mind. Its shape allows for maximum inside head room, yet... ... more

Exaco RIGA Auto Opener - Automatic Window Opener

Exaco Trading RIGA Greenhouses are the latest in a series of hobby greenhouses from Germany's most respected greenhouse manufacturer. The Exaco Trading RIGA was designed with the homeowner in mind. Its shape allows for maximum inside head room, yet...

Amazon Marketplace

$75.00

FREE shipping

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Halls Automatic Roof Vent Opener

Halls Automatic Roof Vent Opener

Automatic Roof Vent Opener Some Additional Accessories Windows are important not only for ventilation, but also for encouraging pollinating bees to enter on sunny, windless days.Halls offers a wide range of accessories for each greenhouse, enabling the... ... more

Halls Automatic Roof Vent Opener

Automatic Roof Vent Opener Some Additional Accessories Windows are important not only for ventilation, but also for encouraging pollinating bees to enter on sunny, windless days.Halls offers a wide range of accessories for each greenhouse, enabling the...

Amazon Marketplace

$59.99

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Rion Automatic Louver Window Opener

Rion Automatic Louver Window Opener

Rion Greenhouse Automatic Window Opener Automatically opens and closes the roof vent/window or the louver window when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens... ... more

Rion Automatic Louver Window Opener

Rion Greenhouse Automatic Window Opener Automatically opens and closes the roof vent/window or the louver window when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens...

Amazon Marketplace

$85.00

FREE shipping

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RIGA-5 17 ft. W x 7.5 ft. H Greenhouse

RIGA-5 17 ft. W x 7.5 ft. H Greenhouse

Includes 4 roof windows with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in... ... more

RIGA-5 17 ft. W x 7.5 ft. H Greenhouse

Includes 4 roof windows with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in...

Amazon Marketplace

$5,950.00

FREE shipping

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RIGA-4s 14 ft. W x 7 ft. 8 in. H Greenhouse

RIGA-4s 14 ft. W x 7 ft. 8 in. H Greenhouse

Includes 2 roof windows with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in... ... more

RIGA-4s 14 ft. W x 7 ft. 8 in. H Greenhouse

Includes 2 roof windows with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in...

Amazon Marketplace

$4,099.00

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RIGA-2s 7 ft. W x 7.66 ft. H Greenhouse

RIGA-2s 7 ft. W x 7.66 ft. H Greenhouse

Includes 1 roof window with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in... ... more

RIGA-2s 7 ft. W x 7.66 ft. H Greenhouse

Includes 1 roof window with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in...

Amazon Marketplace

$2,799.00

FREE shipping

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RIGA-3s 10.5 ft. W x 7.66 ft. H Greenhouse

RIGA-3s 10.5 ft. W x 7.66 ft. H Greenhouse

Includes 1 roof window with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in... ... more

RIGA-3s 10.5 ft. W x 7.66 ft. H Greenhouse

Includes 1 roof window with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in...

Amazon Marketplace

$3,399.00

FREE shipping

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RIGA-3 10.5 ft. W x 7.66 ft. H Greenhouse

RIGA-3 10.5 ft. W x 7.66 ft. H Greenhouse

Includes 1 roof window with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in... ... more

RIGA-3 10.5 ft. W x 7.66 ft. H Greenhouse

Includes 1 roof window with auto opener, 1 rear wall window and barn style door . Extremely heavy duty construction . First class insulation: R or K-value 3.0 . 8 mm UV coated twin wall polycarbonate over main body . 10 mm Twin wall polycarbonate in...

Amazon Marketplace

$3,499.00

FREE shipping

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Roof Vent Opener in Black

Roof Vent Opener in Black

Made from aluminum. Assembly required. 28 in. W x 24 in. H Easily add an additional roof window to your EasyGrow greenhouse with this kit. Fits any size EasyGrow greenhouse. ... more

Roof Vent Opener in Black

Made from aluminum. Assembly required. 28 in. W x 24 in. H Easily add an additional roof window to your EasyGrow greenhouse with this kit. Fits any size EasyGrow greenhouse.

Amazon Marketplace

$197.78

FREE shipping

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Roof Vent Opener in Green

Roof Vent Opener in Green

Made from aluminum. Assembly required. 28 in. W x 24 in. H Easily add an additional roof window to your EasyGrow greenhouse with this kit. Fits any size EasyGrow greenhouse. ... more

Roof Vent Opener in Green

Made from aluminum. Assembly required. 28 in. W x 24 in. H Easily add an additional roof window to your EasyGrow greenhouse with this kit. Fits any size EasyGrow greenhouse.

Amazon Marketplace

$197.78

FREE shipping

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Gigavent - Automatic Greenhouse Vent Opener up to 65 Lbs

Gigavent - Automatic Greenhouse Vent Opener up to 65 Lbs

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... ... more

Gigavent - Automatic Greenhouse Vent Opener up to 65 Lbs

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...

Amazon Marketplace

$139.99

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Exaco Trading - RIGA Window - Greenhouse Roof Window (Discontinued by Manufacturer)

Exaco Trading - RIGA Window - Greenhouse Roof Window (Discontinued by Manufacturer)

The RIGA Greenhouse Roof Window features an automatic opener to offer more ventilation in hot weather. RIGA Greenhouses are the latest in a series of hobby greenhouses from Germany's most respected greenhouse manufacturer. The RIGA was designed with... ... more

Exaco Trading - RIGA Window - Greenhouse Roof Window (Discontinued by Manufacturer)

The RIGA Greenhouse Roof Window features an automatic opener to offer more ventilation in hot weather. RIGA Greenhouses are the latest in a series of hobby greenhouses from Germany's most respected greenhouse manufacturer. The RIGA was designed with...

Amazon Marketplace

$242.96

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