NEW, CHROME 8616 closer for interior and exterior doors. Meets barrier-free requirements (adjustable size 1 thru 6). Open to offer. Adjustable backcheck standard. Controls opening motion during abusive or abrupt opening. Backcheck positioning valve standard. Maintains effective backcheck range on parallel arm applications. Valve is accessible with the closer installed. Optional delayed action adjustable with a separate independent valve. Delays door closing to allow unobstructed passage through the opening. Slim plastic cover standard. Full plastic cover optional. Designed to minimize change in closing speed during severe temperature changes. The 8600 Series is certified to the requirements of ANSI A156.4 Grade 1.