Manufacturer Norton Door Controls Model PR8501-689 Size Adjustable Size 1 Thru 6 Door Width Mounting Parallel Arm Push Side Hand Non-Handed Certifications These closers are listed by the New York City Materials and Equipment Acceptance Division U.L. Listed UL listed, UL10C compliant for positive pressure Compliances ADA Compliant ANSI/BHMA A156.4, Grade 1 Warranty 10-year limited warranty Weight 10.0000