Heavy-Duty Aluminum Commercial Door CloserDesigned for interior commercial use. The Universal Hardware Heavy Duty Aluminum Commercial Door Closer is ADA compliant and features adjustable spring tension. For heavy duty Commercial use. California residents see Prop 65 WARNINGS For heavy duty interior commercial applications Aluminum construction For doors 44 lbs. to 188 lbs. 1 size to 6 size adjustable spring tension Adjustable latching and closing speeds Meets ANSI grade 1 standards and ADA