Mm Manufacturing 641R6-10X6X6 Insulated Register Box 10x6 in

Product Description

The MM Manufacturing 641R6-10X6X6 is a standard-size insulated register box designed for residential and light commercial HVAC duct systems. The interior is lined with 1.5 inches of ductliner insulation, providing an R-6 thermal rating that reduces heat gain and loss at the register opening. The box features a snap-rail flange for secure, tool-friendly register attachment. At 4 inches in depth with overall dimensions of 12 inches long by 8 inches wide by 6.75 inches high, it is sized for typical floor, ceiling, or sidewall register installations. Licensed HVAC technicians and sheet metal contractors are the primary installers.

This register box is suited for new construction and retrofit duct installations where insulated terminations are required at supply air outlets. The snap-rail flange accommodates standard register grilles and diffusers without additional hardware. The R-6 ductliner lining is appropriate for unconditioned-space installations such as attic floors, crawl spaces, and exterior wall cavities where thermal performance at the register boot is a priority. The 10-inch by 6-inch face opening aligns with common register sizes used in residential forced-air systems.

Key Features

• 1.5-inch ductliner insulation provides R-6 thermal rating at the register termination
• Snap-rail flange allows fast, secure register grille attachment
• 10-inch by 6-inch face opening fits standard residential supply registers
• 4-inch box depth suits typical framing cavity and subfloor clearances
• Lightweight construction at 1.8 pounds simplifies overhead and floor installations

Compatibility

Designed as an OEM-style replacement and new-construction register box for standard residential and light commercial forced-air supply duct systems requiring a 10-inch by 6-inch insulated boot termination.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal contractors. Shut down the air handling system and lock out power before cutting into existing ductwork. Seal all duct connections with listed mastic or foil tape per local mechanical code requirements. Verify framing rough-in dimensions before installation to confirm the box fits within the allotted cavity without compressing the ductliner.

Technical Specifications

• Face Opening: 10 inches x 6 inches
• Insulation R-Value: R-6
• Ductliner Thickness: 1.5 inches
• Box Depth: 4 inches
• Overall Length: 12 inches
• Overall Width: 8 inches
• Overall Height: 6.75 inches
• Weight: 1.8 pounds
• Flange Type: Snap Rail

Standard Information

• Brand: MM Manufacturing
• Manufacturer Part Number: 641R6-10X6X6