Janssens | Automatic Opener for Louvered Window 12" Impulse Sealer 6mm virtually unbreakable gray polycarbonate

6mm virtually unbreakable gray polycarbonate panels block up to 99

Approximately 16ft

The 90 degree angle gives strength

using more materials than typically found in products at this price point

4 mm tempered glass or 10mm twin-wall polycarbonate panels and full 6ft 7in side wall height combine to give you a comfortable interior workspace and a full view of your surroundings

Janssens | Automatic Opener for Louvered Window 12" Impulse Sealer 6mm virtually unbreakable gray polycarbonateThe Janssens Automatic Opener for Louvered Window is an optional addition to your louvered window in your Janssens greenhouse. The black tube is filled with special paraffin oil which expands when the temperature reaches around 72 F and the piston will push the window open. When temperature falls, a heavy spring pulls the window closed. No electricity needed! WARRANTY 15 Year Limited Warranty