The Norton CLP8501689 is a high-quality surface mount door closer with a full aluminum cover and adjustable arm. It uses a refined rack and pinion design with valve-controlled backcheck for smooth, reliable operation. Certified to ANSI/BHMA Grade 1 standards, it offers separate adjustments for latch, sweep, and backcheck speeds. Suitable for commercial use, it is durable enough to exceed 25 million cycles, ensuring long-lasting performance and flexibility in installation.