The 502 Door Closer is a safe and reliable accessory for any door. This model by Sentry Safety hardware is furnished with a High-Quality hydraulic fluid that has a low freezing point, ensuring smooth operation from -65.5 C (-86 F) to 40 C (104 F). At the same time the hydraulic fluid ensures constant lubrication for consistently superior functioning. The high endurance rating ensures the consumer 1 million cycles of seamless operation. Essentially this model meets UL Listing standards, which means that samples of the complete product have been tested against nationally recognized safety standards and have been found to be free from certain risk of fire, electric shock, and other similar hazards. The UL Listing Service is the most widely recognized of these safety certification programs. As a result, users can be sure that this device has met accepted and consistently tested safety standards, and will hold up in a number of situations. Additionally the 502 Door Closer from Sentry Safety provides a number of options for the consumer. The Dual Valves allow the adjustment of the close and latch speeds separately, while the reinforced tube arm is adjustable for varying lengths. The closer is capable of installation on a number of doors with a range of weights from 90 to 300 lbs, making it capable of residential and commercial use. Finally, there is a variety of installation options with the various mounting applications - standard, top jamb, and parallel arm.
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