Our sash control devices come in three varieties: limit devices, friction adjustors, and support arms. Limit devices restrict the opening on projected or casement windows - a variety of track and arm lengths are available. Friction adjustors are used to add friction to hinges on projected windows. For top-hung windows, support arms are available in two models. The first opens to full extension and automatically locks into place. The second, designed to extend only 1.5", opens fully with the addition of a key. Once the key is removed, the arm automatically resets when closed.
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