Mm Manufacturing 601-10X8X8 Register Box Snap-rail Flange

Product Description

The MM Manufacturing 601-10X8X8 is a 601-series register box with a snap-rail flange, designed for use in residential and light commercial forced-air HVAC distribution systems. The box measures 10 inches by 8 inches by 8 inches and connects to round duct ranging from 4 inches through 9 inches in diameter. The snap-rail flange simplifies register or grille attachment, reducing installation time and hardware requirements. At 1.4 pounds, the unit is lightweight for single-technician handling. HVAC installers and sheet metal contractors are the primary trades that specify and install this component during new construction or system retrofit work.

The 601-10X8X8 register box is suited for supply-air terminal applications in ducted forced-air systems. It is part of the 601 product line, which is available in 9 different sizes to accommodate round duct connections from 4 inches through 9 inches in diameter, giving installers flexibility across a range of system layouts and room configurations. Typical installations include ceiling, wall, and floor register locations where a square or rectangular face opening transitions to a round duct collar.

Key Features

• Snap-rail flange design allows fast, secure register or grille attachment without additional fasteners
• Accepts round duct connections from 4 inches through 9 inches in diameter
• Face opening sized at 10 inches by 8 inches to match standard register and grille dimensions
• Lightweight at 1.4 pounds, supporting single-technician installation
• Part of a 9-size 601 series for consistent fitment across multiple duct and opening configurations

Compatibility

Designed as an OEM-style replacement or new-installation register box compatible with round duct from 4 inches through 9 inches in diameter in residential and light commercial forced-air HVAC systems.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal contractors. Power down the air handling unit and confirm the system is de-energized before working inside the duct plenum or at register openings. Secure the box to the structural framing or duct collar per local mechanical code requirements before attaching the register or grille to the snap-rail flange. Follow applicable SMACNA guidelines and local mechanical codes for duct connection and sealing requirements.

Technical Specifications

• Face Opening: 10 inches x 8 inches
• Box Depth: 8 inches
• Overall Length: 10.25 inches
• Overall Width: 12.25 inches
• Overall Height: 9.5 inches
• Round Duct Connection Range: 4 inches through 9 inches diameter
• Weight: 1.4 pounds

Standard Information

• Brand: MM Manufacturing
• Manufacturer Part Number: 601-10X8X8