New louvre vent for value range growhouses & lean-to models. Fits to L/H side of frame. The most useful accessory you can buy for your value Mini greenhouse or Growhouse. Designed to automatically open as the temperature rises above 18 degrees C (65 degrees F) & then close again as the temperature cools. The unit is ideal if you are out for the day & the weather changes. It is also very useful for models that catch the early sun, as sunrise can be 5:30am in the Summer. Grease filled opener requires no electricity to operate.THESE CAN BE FITTED RETROSPECTIVELY
- you will need to drill a 4mm hole in the end plate of your existing frame.