Liberty Automatic Louver Window Opener - Lifts 55 Lbs
Price 49.99 - 89.99 USD
Opening force of 55 Lbs with cylinder, closing force 33 lbs with heavy duty spring. * Opening temperature adjustable between 63 -78°F * Automates ventilation and temperature in your home or greenhouse. * Replacement cylinders available from Agriculture Solutions LLC * High quality product of Scandanavia, not cheaply made chinese. 1 Year Warranty