The five louvre blades are 575mm wide twinwall polycarbonate glazing. This louvre vent is 635mm wide overall (25") which fits the majority of aluminium greenhouses. Louvre blade width 575mm (23"). 5 twinwall polycarbonate louvre blades.
Automatic Greenhouse Louvre Vent Opener from Bayliss
Greenhouse Louvre Vent - 5 Adjustable Polycarbonate Blades 575mm Wide, Green
Greenhouse Louver Window, Aluminium Louvre Vent for Greenhouse, Automatic Louver Window Opener, Greenhouse Ventilation Window(2.0+2.8+3.8+5.0mm)
Alton greenhouse louvre kit with glass.
Gardman Open & Close Greenhouse Auto Vent Window Vent Opener 08870
Green Greenhouse Window Stay Sturdy Aluminum Manual Greenhouse Roof Vent Ope BL
