Commercial Hydraulic Door Closer Is 156.4 Grade 1 ANSI Certified And UL 10C Fire Rated; ADA Compliant; Adjustable Power Size 1-6 Requires Less Than 5 Pounds Of Force To Open; Standard Features Include: Adjustable Sweep, Latching. And Back Check Speeds; Includes Hardware For Regular Arm Top Jamb And Parallel Arm Applications; Lifetime Limited Warranty; Fabricated With Aluminum; Powder Coated Matte Black Finish.