Eleven glass louvers
Open the louvers for airflow and a cooler greenhouse.

The Louver Window can be added to a greenhouse to provide great air flow and a nice change in temperature. For most of the victorian greenhouses we carry this will be an extra Louver window. This is suitable for a regular victorian or a junior.
This Louvered window features 11 glass panels and extra glass piece for underneath the window. This does not include an auto opener, however, you may add it as an accessory, in addition to the wind cover.
The louvered window can work for all Victorian greenhouses even the Junior ones. However, for the Regular Royal Victorian Greenhouses, the Louvered window comes with an extra piece of glass underneath it to cover the gap. For the Junior Greenhouses (JVIC 23, 24 and 25), it comes with an extra Lexan Panel to cover that bottom part.
🌳 Dimensions: 40 ¼” x 28 ¾”
🌳 It comes with Eleven glass panels.
🌳 Manual operation (there is an option to add an Automatic Opener that opens the louvers when the temperature goes up to 71 degrees).
🌳 Black color
🌳 Wind Cover for when it's super windy. (Lexan panel to cover the louvered window during the winter season).
🌳 Automatic Opener for Louvre Window: the black tube is filled with special parafine oil - which expands when the temperature reached around 72º and the piston will push the window open up to about 14". When temperature falls a heavy spring pulls the window closed. No electricity needed!
Exaco · Accessory
Why customers choose it
Open the louvers for airflow and a cooler greenhouse.
Comes with a glass filler for regular models or a Lexan panel for Juniors.
Add the paraffin-powered opener and the louvers open on their own as it warms up.
A Lexan panel covers the window when it is very windy or cold.
The details
| Size | 40 1/4" x 28 3/4" |
|---|---|
| Louvers | 11 glass panels |
| Color | Black |
|---|---|
| Filler panel | Glass for regular Royal Victorians, Lexan for Juniors |
| Fits | All Janssens Royal Victorian greenhouses, including Juniors (JVIC 23, 24, 25) |
|---|
| Operation | Manual |
|---|---|
| Automatic opener | Optional, opens at about 71 to 72º, no electricity |
| Wind cover | Optional Lexan panel for windy weather and winter |
Good to know
Can't find your answer? Our greenhouse specialists are happy to help you choose.
678-408-8222 Email usYes. Shipping is free. Locations with limited access, such as islands, are rare exceptions that may carry an extra fee, and we'll tell you before anything ships.
Yes. If you find the same greenhouse for less from an authorized dealer, call or email us with the offer and we'll review it.
Yes. Mulberry Greenhouses is an authorized retailer, so your greenhouse is covered by the full manufacturer warranty.
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