Window opening and venting opener units for window opening and for venting – suitable for windy areas / resists wind twist. Made from aluminium and stainless material. Clamp and screw for easy installation. Auto venting opener with a double spring design with temperature controlled automatic venting. Double spring design – the double spring has a stronger thrust force and is more durable. It can be closed manually. Solar heat sensitive vent opener automatically opens the vent when the weather warms up and then closing when it cools down. Adjustable auto opening temperature range is adjustable from 60 to 77℉ by turning the cylinder. Universal fit for most narrow frames.
Window Opening and Venting Opener Units
Starts opening between 60 – 77°F, replaces manual vent arm.