Mill-rose 84040 Flue Brush 2-1/2 in Carbon Steel 1/4 Npt

Product Description

The MILL-ROSE 84040 is a carbon steel flue brush designed for cleaning flue passages, vents, and exhaust channels in gas-fired heating equipment. The brush head measures 2-1/2 inches in diameter and features a 1/4 NPT threaded tap, allowing it to attach to standard extension rods for extended-reach cleaning. Carbon steel fill provides firm, effective scrubbing action to remove soot, scale, and carbon deposits from flue walls. HVAC technicians and plumbers rely on this type of brush during seasonal maintenance, combustion system servicing, and pre-inspection cleaning of venting systems.

The MILL-ROSE 84040 is suited for residential and light commercial applications where flue and vent passages require regular maintenance. Typical use includes cleaning B-vent, single-wall metal flue pipe, and similar exhaust passages on gas furnaces, boilers, and water heaters. The 1/4 NPT threaded connection is a widely used standard, making this brush compatible with most commercially available flexible and rigid brush rod sets.

Key Features

• 2-1/2 inch diameter brush head sized for standard residential flue passages
• Carbon steel fill delivers firm scrubbing action against soot and scale deposits
• 1/4 NPT threaded tap connects to standard extension rod systems
• Designed for repeat service use in professional HVAC and plumbing maintenance

Compatibility

Designed as a general-purpose flue and vent brush for use with 1/4 NPT-compatible extension rod sets in standard residential and light commercial flue cleaning applications.

Installation Notes

Always shut down and allow the heating appliance to cool completely before servicing any flue or venting component. This brush is installed by licensed HVAC technicians or plumbers performing routine combustion system maintenance. Thread the brush securely onto an appropriate extension rod before inserting into the flue passage. Follow applicable IFGC and local mechanical code requirements for venting system inspection and maintenance intervals.

Technical Specifications

• Brush Diameter: 2-1/2 inches
• Fill Material: Carbon Steel
• Thread Connection: 1/4 NPT
• Weight: 2 pounds

Standard Information

• Brand: MILL-ROSE
• Manufacturer Part Number: 84040