The Ryobi D-4550 Tri-Pack Door Closer is a premium-grade, heavy-duty surface-mounted closer engineered for demanding commercial environments. Constructed with a durable R14 high-silicon aluminum alloy body, this closer offers exceptional wear resistance, corrosion resistance, and a lightweight profile—making it the ideal solution for high-traffic areas like schools, hospitals, institutional buildings, and office complexes.
This Tri-Pack version includes all essential hardware to support three mounting configurations—Regular Arm, Top-Jamb, and Parallel Arm—ensuring versatility and simplified installation for contractors and facility managers.
Key Features & Benefits
Adjustable Power Size 1–6 (+50%): Precisely control closing force to suit a wide range of door sizes and environmental conditions.
Non-Handed Design: Compatible with both left- and right-handed doors, simplifying stock and installation.
Tri-Pack Configuration: Includes regular arm, parallel bracket, and mounting hardware for all three primary installation methods.
R14 Hard High-Silicon Aluminum Alloy: Automotive-grade construction ensures long-term performance and reduced maintenance.
Full Hydraulic Control: Smooth, quiet operation with adjustable valves for:
Closing Speed
Latching Speed
Backcheck Resistance
All-Season Hydraulic Fluid: Eliminates the need for seasonal adjustments in temperature-sensitive environments.
Heavy-Duty Forged Arms: Interchangeable with multiple arm options including hold-open, stop, compression stop, and track-rail models.
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