Lcn 3133STDALLH Size 3 Lh Concealed Track Door Closer

Product Description

The LCN 3133STDALLH is a Size 3 left-hand concealed in-door track closer designed for commercial door applications requiring a clean, low-profile installation. The closer mounts inside the door, hiding the mechanism from view while delivering controlled door swing and reliable latching. It ships in a 689 aluminum finish, suited for aluminum-framed doors and storefronts common in institutional settings. The unit weighs 6.75 pounds and measures 23.3 inches in length, 4.5 inches in width, and 4 inches in height. Installation is handled by licensed door hardware technicians or commercial contractors working to ADA and local building code requirements.

This closer is built for high-traffic commercial environments including schools, hospitals, government buildings, and correctional facilities. The concealed track design is well-suited for locations where exposed closer arms are undesirable for aesthetic or security reasons. The left-hand designation applies to doors where the hinge is on the left side as viewed from the pull side. It is sold as a single unit and is available in case quantities of four for multi-door projects.

Key Features

• Concealed in-door track mount keeps hardware out of sight for a clean door profile
• Size 3 power rating handles standard commercial interior door applications
• Left-hand configuration for correct track and arm geometry on LH doors
• 689 aluminum finish coordinates with aluminum door and frame systems
• Compact footprint at 23.3 inches x 4.5 inches x 4 inches
• Sold per unit with case quantity of four available for volume installations

Compatibility

Designed as an OEM-style replacement or new-installation closer for left-hand commercial doors requiring a concealed in-door track mounting configuration in the LCN 3130 series.

Installation Notes

Installation should be performed by a qualified door hardware technician or commercial contractor familiar with concealed closer systems. Power down any access control or electric strike circuits tied to the door before beginning work. Verify door hand and swing direction before ordering, as concealed track closers are not field-reversible. Follow ANSI A156.4 standards and local building codes for closer sizing and accessibility compliance.