Improves ventilation without draughts. Fits most greenhouse models including eden, halls and gardman. Purpose made for polycarbonate greenhouses. Polycarbonate sheets included. Green coated aluminium frame will not rot or rust. Easy to assemble - all fittings and instructions are included. Fully adjustable. Size: h = 20in (0.50m) , w = 24in (0.60m). ...more
 
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