Halls Louver Opener
Out of stock
The Halls Automatic Louver Opener is designed to replace the manual opener on all existing Halls windows and can be pre-set to open at different temperatures. Saves you time and ensures that your greenhouse is adequately ventilated even when you’re away.
Grower’s Tip:
Use in combination with Halls Automatic Vent Opener to dramatically improve air circulation and climate control.
