Air Flow Products 5241408 Ceiling Diffuser Boot 4x14x8

Product Description

The AIR FLOW PRODUCTS 5241408 is a straight ceiling diffuser boot designed to connect sheet metal ductwork to a ceiling diffuser or register in residential and light commercial HVAC systems. The boot transitions from the round or rectangular duct collar to the diffuser face opening, directing conditioned air into the occupied space. With a nominal size of 4 x 14 x 8 inches, this straight-profile boot is suited for installations where the duct drops directly into the diffuser without an offset. HVAC installers and sheet metal contractors are the typical trades working with this component.

This diffuser boot is intended for use in forced-air heating and cooling systems where a ceiling-mounted supply diffuser or register is required. The straight configuration makes it appropriate for applications where the supply duct runs perpendicular to the ceiling plane and aligns directly above the diffuser opening. It fits into standard residential and light commercial ceiling plenum installations and is sized to mate with common 4-inch collar ductwork feeding into a 14 x 8-inch diffuser face.

Key Features

• Straight boot profile for direct vertical duct-to-diffuser connections
• Nominal dimensions of 4 x 14 x 8 inches to match standard diffuser face sizing
• Designed for ceiling-mounted supply air diffuser and register installations
• Compatible with forced-air heating and cooling distribution systems

Compatibility

Designed as an OEM-style replacement or new-installation component for ceiling supply diffusers and registers in residential and light commercial forced-air HVAC systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal contractor. Power down the air handling unit and shut off system controls before beginning any duct or boot work. Seal all connections with UL-listed duct sealant or foil tape per local mechanical code requirements. Ensure the boot is properly supported at the ceiling opening to prevent movement and air leakage at the diffuser face.

Technical Specifications

• Boot Type: Straight Ceiling Diffuser Boot
• Nominal Size: 4 x 14 x 8 inches

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: 5241408