Sargent DL Series Double Lever Pull Tubular Lock – Studio Collection with Cast Zinc ConstructionProfessional Tubular Lock Solution for Interior ApplicationsThe Sargent DL Series tubular lock combines style and function with ease of installation, featuring solid cast zinc lever construction from the Studio Collection. This non-handed tubular lock design accommodates door thicknesses from 1 3/8″ to 1 3/4″ with standard 2 3/4″ backset depth and 1/2″ latchbolt throw. UL-cUL fire-rated up to 3 hours and ADA compliant for professional interior applications from high-end residential to commercial office environments.Professional Features & Benefits Versatile Door Compatibility: Accommodates door thickness from 1 3/8″ to 1 3/4″ with backset options from 2 3/8″ to 2 3/4″ for flexible installation requirements. Non-Handed Design: Universal installation eliminates field determination requirements and reduces inventory complexity for contractors and facility managers. Studio Collection Aesthetics: Solid cast zinc lever construction with decorative hardware options from Studio Collection and Coastal Series for enhanced design appeal. Fire-Rated Performance: UL-cUL listed for up to 3-hour fire rating applications ensuring code compliance in commercial and institutional settings. ADA Compliance: Meets Americans with Disabilities Act requirements and ICC A117.1 standards for accessible design in public and commercial buildings. Tubular Lock Convenience: Easy installation design with passage and privacy function options suitable for multiple interior applications including offices, residential units, and institutional facilities. Complete Hardware Package: Includes 2 keys and T-Strike curved lip strike for complete installation with roseless trim availability for clean aesthetic applications. Manufacturer Warranty: 1-year limited warranty provides confidence and protection for professional installations.Technical Specifications Refer to manufacturer documentation for complete technical specifications.Installation & Operation Review manufacturer specifications and verify door preparation requirements including door thickness between 1 3/8″ and 1 3/4″, and confirm backset requirements between 2 3/8″ and 2 3/4″. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for tubular lock installation. Prepare door by drilling required holes for tubular lock mechanism and latchbolt assembly per manufacturer specifications. Install tubular lock mechanism and secure all mounting hardware to door per manufacturer torque specifications, ensuring proper alignment of internal components. Install strike plate on door frame ensuring proper alignment with latchbolt for smooth operation and secure latching throughout the full range of motion. Test lock operation with provided keys to verify proper function, latchbolt engagement, and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.Professional Applications High-End Apartment and Condominium Units Commercial Office Buildings Institutional Facility Interior Doors Residential Home Office Applications Bathroom and Bedroom Privacy Applications Kitchen Pantry and Storage Areas Multi-Tenant Residential PropertiesWhy Choose Sargent Quality?Sargent DL Series tubular locks deliver professional-grade reliability with solid cast zinc construction and UL-cUL fire rating up to 3 hours for demanding commercial applications. The 1-year limited warranty and ADA compliance ensure dependable performance where accessible design and code compliance are essential. Engineered for ease of installation while maintaining the aesthetic appeal required by architects and design professionals.