DESCRIPTION Louvre Window The window features 11 glass panels and an extra glass piece underneath the window - for Royal or Junior Victorian Greenhouses. Assemble required. Not for DIY projects. Exclusive only for Janssens Greenhouse Manual Operation Black Color Auto-Opener is available (See below) Louvre Window Includes: Louver with 11 glass louver panels & all hardware Clear Lexan Cover Panel (Frost Cover) Glass panel for Royal Victorians or Lexan Panel for Junior Victorians to go below the louver window Assembled Size 40-inch L x 30-inch W and 0.5-inch depth height Click to check all Janssnens Greenhouse Automatic Louvre Window Opener Work for Royal or Junior Victorian Greenhouses: 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 the temperature falls a heavy spring pulls the window closed. No electricity is needed!. No electricity is needed! Full Automatic Black Color Fly Screen Cover for Louvre Window Mounted on the outside wall of the greenhouse
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