Resideo 50000066-001 Cover Plate

The Resideo 50000066-001 Cover Plate is a critical accessory for service technicians tasked with upgrading or replacing older thermostats. This 5.5-inch round decorative wall plate is specifically engineered for a flush fit with Honeywell Home T87K, T87N, and T8775 Series thermostats, including the popular The Round Digital models. Constructed from high-impact, non-yellowing plastic in a professional Premier White finish, this plate provides a clean interface by effectively concealing wall damage, unpainted surfaces, or oversized 2x4 electrical box openings from previous installations.

For contractors, the Resideo 50000066-001 simplifies the installation process by serving as a thermostat mounting base adapter that ensures a level, secure surface on uneven drywall. Its 5-1/2" diameter is optimized to cover standard "goof" marks without appearing bulky. This genuine OEM replacement part maintains the structural integrity and aesthetic standards required for high-traffic residential and light commercial environments, ensuring the HVAC thermostat installation meets professional code and client expectations for localized climate control hardware.

• Universal Compatibility: Precision-molded for seamless integration with T87K, T87N, and T8775 iconic round thermostats.
• Enhanced Coverage: The 5.5-inch diameter manages wall imperfections and covers standard electrical junction boxes.
• Technical Durability: Heat-resistant, high-grade plastic construction prevents warping and maintains color consistency over time.
• Installation Efficiency: Includes necessary mounting hardware to facilitate rapid field replacement for service calls.

• Will this plate fit older mechanical T87 series thermostats? This specific model is optimized for the newer digital "The Round" series (T8775/T87K/T87N) to ensure proper mounting hole alignment.
• Does this cover plate require a separate mounting bracket? The plate is designed to work in conjunction with the thermostat's existing subbase to provide a finished aesthetic.
• Can it be used to mount a thermostat to a horizontal junction box? Yes, the 50000066-001 is designed to span the width of standard electrical boxes to provide a secure mounting surface.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.