Tell Aluminum/Steel Hydraulic Adjustable Door Closer Grade 1

Tell Manufacturing's 600 Series Door Closer is designed for interior commercial use. It is a heavy-duty aluminum commercial door closer that complies with ANSI A156.4, UL/ULC listed up to 3 hour fire rated. Features 1-4 adjustable spring tension.Mounting tri-pack regular, top jamb and parallel arm applicationsDoor preparation 9-1/16 inch horizontal and 3/4 inch vertical mounting hole locations (retrofits traditional closer)Valves adjustable, independent, non-critical (sweep and latch), consistent closing speeds