Typical ApplicationsCommercial Office BuildingsEducational FacilitiesHealthcare InstitutionsRetail EstablishmentsIndustrial and Warehouse FacilitiesMulti-Tenant Residential PropertiesGovernment and Municipal BuildingsWhy Cal-Royal CONCR441?Cal-Royal door control accessories are built to support reliable, coordinated performance on demanding commercial dual door openings. The CONCR441 kit's universal mounting versatility across regular arm, top jamb, and parallel arm configurations makes it a practical solution for installers standardizing dual door closer connections. Engineered for the Commercial Door Controls category, this kit helps ensure consistent, professional-grade results.