3501 Door Closer - NHO Full Cover

The 3500 Series full-cover door closer provides architectural-grade aesthetics with Grade 2 commercial durability. The full metal cover conceals the closer body and valves, presenting a clean profile that suits corporate, hospitality, and institutional openings.

ANSI/BHMA A156.4 Grade 2 certified with UL 10C fire ratings, 3500 closers handle doors up to 150 lbs with adjustable spring sizes 1 through 5. The 3501 non-hold-open and 3511 hold-open models are the specification backbone, with 3521 stop-only and 3531 stop-with-spring arm configurations available for specialized applications.

Hydraulic sweep and latch valves are independently adjustable and sealed against leakage. Non-handed installation, ADA-compliant BF packages, and a 10-year warranty round out a well-rounded medium-duty specification for office, education, and retail environments.