Commercial Door Closer, Aluminum Finish, Size 3

Complies with ANSI A156.4. Grade 1, 2 million cycles. UL/ULC listed up to 3 hours fire rated. Spring power adjustable size 1 - 6 standard for interior and exterior applications. Adjustable, hydraulic - providing cushioning and preventing uncontrolled openings of the door. Stamped steel, accommodates reveals up to 3 1/4