Resideo 50028399-001 Coverplate

The Resideo 50028399-001 Coverplate is a specialized thermostat wall plate designed to provide a clean, professional finish for Premier White installations. Measuring 7 7/8 inches x 5 1/2 inches, this oversized trim plate is the standard solution for covering wall damage, old screw holes, or unpainted surfaces left behind by legacy pneumatic or larger digital thermostats. Specifically engineered for the Honeywell Home Prestige THX9000 Series, it ensures a secure, flush fit that maintains the aesthetic integrity of high-end HVAC control upgrades. For technicians performing a thermostat replacement, this plate eliminates the need for drywall repair and repainting, reducing total labor time per call. The durable plastic construction matches the exact color profile of Resideo HVAC controls, ensuring a seamless look for Prestige 2.0 thermostat installation projects. Integrating this oversized cover plate into your workflow ensures consistent, high-quality results for demanding residential and light commercial applications.

Key Benefits

• Large Surface Coverage: The 7 7/8" x 5 1/2" dimensions effectively hide drywall marks and old mounting footprints without requiring additional patchwork.
• Prestige Series Compatibility: Precision-molded to fit Honeywell THX9000 Prestige HD and Prestige 2.0 Comfort Systems for a stable, professional mount.
• Premier White Finish: Color-matched to standard Resideo thermostat housings for a cohesive, factory-correct appearance.
• Labor Efficiency: Streamlines the HVAC thermostat upgrade process by bypassing cosmetic wall repairs.

Common Questions

What are the exact dimensions of the Resideo 50028399-001?
This plate measures 7-7/8 inches (200 mm) in width by 5-1/2 inches (140 mm) in height, making it ideal for covering paint gaps from older, horizontal thermostats.

Will this work with the VisionPRO 8000 series?
No, this specific model is designed for the footprint of the THX9000 Prestige Series. For VisionPRO models, a different trim plate kit is required to ensure proper hole alignment.

Can this plate be painted to match custom wall colors?
While the material is a durable Premier White plastic, it can be primed and painted with plastics-compatible coatings to match specific interior designs if required.

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.