Prices start at : 79.00 USD / each
The vent arm was designed with the use of wax that expands with heat to push a piston, which opens the louvre window, as the air gets warmer then contracts as it cools, closing with the use of a spring.
- ✓ Easy to install
- ✓ Protect your plants; provide them with the required temperature and humidity levels
- ✓ Compatible with Palram greenhouses
- Product Depth (in.): 2 in
- Product Type: Accessory - Auto Side Louvre Opener
- Product Width (in.): 11 in