Diversitech 620-406 Flat Blank Cover 4 Inches

Product Description

The DIVERSITECH 620-406 is a 4-inch flat blank cover designed to close off and protect open electrical box knockouts and openings in both ducted and ductless HVAC installations. Constructed from steel, this cover provides a clean, finished appearance while keeping the interior of the box protected from debris, moisture, and accidental contact. UL Listed for safety compliance, it is a straightforward replacement or finishing component installed by HVAC technicians, electricians, and plumbers during new construction and service work.

This blank cover is suited for use in residential and light commercial applications where a 4-inch steel box cover is needed. It works with both ducted and ductless system installations, making it a versatile stock item for service vans and job sites. Typical use cases include capping unused electrical box openings during system installation or finishing a box face where no device or outlet is required.

Key Features

• 4-inch size fits standard 4-inch electrical steel boxes
• Steel construction for durability in commercial and residential installs
• UL Listed for safety and code compliance
• Compatible with both ducted and ductless installation environments
• Flat blank design provides clean closure of unused box openings

Compatibility

Compatible with both ducted and ductless installations. Designed as an OEM-style replacement flat blank cover for standard 4-inch steel electrical boxes.

Installation Notes

Installation is typically performed by a licensed electrician or HVAC technician. Always de-energize the circuit at the breaker panel and verify power is off before working on any electrical box. Follow applicable NEC guidelines for box fill and cover requirements. Secure the cover firmly to the box using the appropriate fasteners to ensure a flush, stable fit.

Technical Specifications

• Size: 4 inches
• Material: Steel
• UL Listed: Yes
• Application: Ducted and Ductless

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: 620-406