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JempVent Automatic Window Opener

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This vent control helps protect plants by stabilizing the temperature in your greenhouse or conservatory. Easy to install, the sealed unit costs nothing to run as it uses solar energy. Jemp Vent responds to temperature changes by opening and closing the roof vent automatically. Features adjustable temperature control and can lift up to 15 lbs (7kg).
Item # Description Price Quantity
Package of 3