LCN 1461 689 DEL Heavy-Duty Slim Line Door Closer With Delay Action Valve – Aluminum Powder Coated1461 DEL 689 Architectural quality Grade 1 slim line door closer for heavy duty and high traffic applications 1 x 7 1 2 hole pattern Delayed action valve Slim cast iron body Forged Steel Arms All Weather Fluid Non Handed can be installed 3 different ways Fast and easy installation Three valve adjustment for optimum performance Adjustable power sizes 1 6 Snap on plastic cover UL & cUL listed for 3 hour fire rating Tested & certified under ANSI Standard