Super Bayliss MK7 Vent Opener
Product Code : VEMK7S Barcode : 5055750050718
This extremely reliable, British made, automatic vent opener has been specially designed to lift very heavy double-glazed windows weighing up to 15.9kg.
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The super autovent has a unique, ultra strong, finned aluminium power tube with internal and external fins to give more efficient heat exchange between the wax inside the tube and the surrounding air. It opens a vent exerting a load of up to 15.9 kg approx. 38cm at full stretch and operates between 60*F (16*C) and 75*F (25*C).