Automatic Vent Opener Bread with improved grease formulation to

with improved grease formulation to reduce motor noise

Cheesecloth

Creating space for wildlife such as hedgehogs

Accessories Included

Automatic Vent Opener Bread with improved grease formulation toAutomatic vent operators on the roof and base vents require no electricity or batteries. The vent operator contains a paraffin (wax) that expands when the temperature reaches about 65F, pushing the vent open to its fully opened position at about 85F. The operators springs draw each vent closed as it cools and the paraffin contracts. It is adjustable within approximately 5F and easily detachable for manual operation. The vent opener cylinders can be