The Norton 7500689 is a heavy-duty, adjustable surface mount door closer finished in aluminum with sex nuts for secure installation. Engineered with a durable aluminum alloy body and rack and pinion mechanism, it features adjustable backcheck and speed controls to optimize door performance. This non-handed closer is easy to install and includes heavy-duty arms and a molded plastic cover. Certified to ANSI/BHMA A156.4 Grade 1 standards, it comes with a limited 25-year warranty, ensuring reliable, professional-grade operation for commercial applications.