This Vitavia Automatic Roof Vent Opener is filled with wax, when the wax reaches a certain temperature it opens your greenhouse roof vent. Once the wax cools and solidifies the vent closes to keep the heat inside your greenhouse.
to Mainland UK Within 21 Working Days. Some Scottish postal areas attract an additional delivery charge. Scroll down for charges.
This Vitavia Automatic Roof Vent Opener is filled with wax, when the wax reaches a certain temperature it opens your greenhouse roof vent. Once the wax cools and solidifies the vent closes to keep the heat inside your greenhouse.
PLEASE NOTE, VITAVIA DO NOT DELIVER TO NORTHERN IRELAND, THE ISLE OF WIGHT OR ANY OTHER OFFSHORE AREA. CALL US FOR ALTERNATIVES.