TELL MANUFACTURING, INC. Commercial Grade 1 Door Closer, Size 4 Commercial Grade 1 Door Closer, Size 4 ANSI A 156.4, 300 Series, Grade 3, 500,000 cycles, UL listed. Chassis/ Closer: Non-handed, cast aluminium, mounting to regular, top jamb or parallel arm applications. Door Preperation: 9-1/16" horizontal and 3/4" vertical mounting hole locations (retrofits traditional closer) Door Range: Up to 180 degrees. 10 year limited warranty by manufacturer