From: Greenhouse Fans, Louvres, Vent Openers and Shading : Louvres
Increase ventilation and air circulation in your greenhouse with this five bladed Louvre Kit designed to be fit in either an aluminium or wooden greenhouse.
The kit is not of a fixed width, it wll fit 90% of all greenhouses, the width of the kit is determined by the spacing of your glazing bars.
The kit consists of: Right Hand Fitment - with opening handle, Left Hand Fitment and Fixing Bolts.
NB- four bolts are included for fitting the kit to an aluminium greenhouse - these will need to be substituted for wood screws (not supplied) if the kit is to be fitted in a wooden greenhouse.