Additional Roof Window for Royal Victorian Greenhouses from Exaco Janssens

Additional Roof Window for Royal Victorian Greenhouses (Exaco Janssens) An additional Roof Window for Royal Victorian Greenhouses is a great addition for your greenhouse for additional air circulation.  The roof window fits the Janssens Royal and Junior Victorian greenhouses.  It is the same material as the greenhouse – 4mm tempered safety glass and powder coated extruded aluminum with stainless steel hardware and rubber gasket. This can only be purchased with the purchase of a greenhouse and cannot be shipped alone.  Features & Specifications of the Roof Window for Royal Victorian Greenhouses 🌳 Dimensions: 29” x 33” 🌳 powder coated extruded aluminum  🌳 stainless steel hardware and rubber gasket 🌳 Easy to install Option 1: Exaco Janssens Automatic Roof Window Opener This is an amazing feature provided for Royal or Junior Victorian greenhouse owners who do not want to manually open their roof windows. The black tube is filled with special paraffin oil - which expands when