The Norton 1628H689 Standard Soffit Plate in aluminum finish is designed for hold-open closers, offering compatibility with Norton’s trusted door control systems. Known for durable rack and pinion design and corrosion-resistant construction, it features a molded plastic cover and non-handed design for straightforward installation. Certified to ANSI/BHMA A156.4 Grade 1 standards, this component supports exceptional performance with over 25 million cycles in testing and comes with a limited 15-year warranty, making it ideal for demanding commercial applications.