Mm Manufacturing 203RF-14X6X8 90 Angle Register Boot with Flange

Product Description

The MM Manufacturing 203RF-14X6X8 is a 90-degree angle register boot with flange, designed to transition ductwork to a floor, wall, or ceiling register opening. This sheet metal fitting makes the right-angle turn from a round or rectangular supply duct to a finished register face, directing conditioned air into the occupied space. At 14 inches by 6 inches by 8 inches, it fits a standard residential supply opening and connects to round duct as part of a forced-air distribution system. HVAC installers and sheet metal mechanics use this fitting in new construction and retrofit applications to complete supply runs to individual registers.

This boot is suited for residential and light-commercial forced-air HVAC systems where a 90-degree transition from supply duct to a register opening is required. The flanged collar seats flush against the subfloor, wall surface, or ceiling deck, providing a clean mounting surface for the register face. It is part of the 203RF series, which is available in multiple sizes to accommodate 5-inch, 6-inch, 7-inch, 8-inch, and 9-inch round duct connections.

Key Features

• 90-degree angle configuration transitions duct runs to floor, wall, or ceiling register openings
• Flanged collar provides a flat mounting surface for register face attachment
• 14 x 6 x 8 inch register opening size fits common residential supply layouts
• Part of the 203RF series available in 8 common sizes for ducts from 5 to 9 inches
• Lightweight at 2.2 pounds for easy single-technician handling during installation

Compatibility

The 203RF series is designed to connect to 5-inch, 6-inch, 7-inch, 8-inch, and 9-inch round duct. Designed as an OEM-style sheet metal register boot for residential and light-commercial forced-air supply duct systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal mechanic. Power down the air handling unit at the disconnect before cutting into existing ductwork or securing the boot in place. Secure the flange to the framing or subfloor surface using sheet metal screws and seal all joints with listed duct sealant or UL 181-rated tape per applicable mechanical codes. Do not compress or restrict the boot opening, as this will reduce airflow to the register.

Technical Specifications

• Register Opening Size: 14 x 6 x 8 inches
• Package Length: 13 inches
• Package Width: 16.25 inches
• Package Height: 11 inches
• Weight: 2.2 pounds
• Configuration: 90-degree angle with flange

Standard Information

• Brand: MM Manufacturing
• Manufacturer Part Number: 203RF-14X6X8