Alpine’s Counter Shutter is shown here in a high school bookstore, a typical application that requires both security and ease of operation. After hours, this shutter provides secure closurethanks to the two manual slide locks, shown on the bottom of the door. Cylinder locks are also offered. The curtain is powder coated in white, one of 187 RAL available colors. Other finishes are available including white or grey finish coat, as well as stainless or galvanized steel and anodized aluminum.This installation features manual push-up operation, though Alpine’s counter doors are also offered with hand crank or electrical operation. UL-listed fire-rated models are also available, which will close automatically in the event of a fire. Smoke-rated models contain smoke seals and brush seals to prevent air infiltration and stop the movement of smoke through the door. This Alpine Counter Door demonstrates how security features can be integrated architecturally without compromising the open and accessible design that today's learning environments demand.Alpine’s full line of rolling counter doors are designed for smaller counter-top openings such as pass-through windows, school cafeterias, ticket/parts counters, pharmacy windows, and many other applications. Styles include flat slat, perforated slat, grilles, split frame, wooden, and fire-rated options. For any counter-top opening, customers can rely on Alpine’s 50+ years of innovation and experience to keep them protected.