Lcn 3133STDGLBLKLH Size 3 Lh Concealed Door Closer Black

Product Description

The LCN 3133STDGLBLKLH is a Size 3 left-hand concealed in-door track door closer finished in 693 black. Designed for installations where a clean, unobtrusive appearance is required, the closer mechanism is fully concealed within the door itself, hiding hardware from view on both faces. The closer arm rides a track mounted to the frame head, providing controlled swing and positive latching on every cycle. At 6.5 pounds and measuring 23.2 inches in length, 4.4 inches in width, and 4 inches in height, this unit fits within standard hollow metal and wood door preparations. Licensed door hardware technicians and commercial glaziers are the typical installers for this product type.

This closer is suited for commercial and institutional applications including schools, hospitals, government buildings, and high-traffic public facilities where a concealed hardware profile is preferred or specified. The in-door track design keeps the mechanism out of sight, making it appropriate for interior corridor doors, office entries, and similar openings where aesthetics and durability both matter. The left-hand designation determines handing relative to the hinge side and must be confirmed against the door opening before ordering.

Key Features

• Concealed in-door track design hides closer body within the door for a clean appearance
• Size 3 closing force suitable for standard commercial interior doors
• Left-hand handing for correct arm and track alignment
• 693 black finish coordinates with dark hardware specifications
• Sold individually as a single unit

Compatibility

Designed as an OEM-style replacement or new-installation concealed door closer for commercial-grade hollow metal and wood doors requiring a left-hand in-door track mounting configuration.

Installation Notes

Installation should be performed by a licensed door hardware technician or qualified contractor familiar with ANSI and BHMA door closer standards. Confirm door handing and door preparation dimensions before mounting to avoid misalignment of the track and arm assembly. Disconnect or de-energize any electrified hardware in the opening before beginning work. Refer to the manufacturer installation template for hole-pattern locations, as field modifications to the door can void the product warranty.