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Halls Automatic Roof Vent Opener

Halls Automatic Roof Vent Opener
Up to 6 Week Delivery
Click images to enlarge - Pictures are for illustration purposes
Quick Code: P16051
  • £59 inc VAT
  • FREE Delivery*

    4 - 6 weeks to Mainland UK

    *Offshore deliveries are available. See charges below

Buy this Halls Automatic Roof Vent Opener to automatically open your greenhouse roof vents to effectively ventilate your greenhouse and prevent excess humidity.

The autovent’s cylinder is filled with wax that liquefies as it heats up, automatically opening your roof vent and then closing it as the temperature drops later in the day.