Schaefer Brush 43504 Tube Brush 3/8 in Stainless Steel

Product Description

The SCHAEFER BRUSH 43504 is a double stem, single spiral tube brush designed for cleaning the interior of tubes, pipes, and small-bore conduit. The brush measures 3/8 inches in diameter with an overall length of 6-1/4 inches, including a brush scraper length of 4 inches. Bristles and brush construction are both stainless steel, making this tool suitable for use in environments where corrosion resistance and durability under repeated cleaning cycles are required. The 12-24 female threaded connection allows the brush to be attached to extension rods or power drive handles for added reach. Plumbers, HVAC technicians, and maintenance pros use this type of brush for tube and heat exchanger cleaning tasks.

This tube brush is suited for residential and light commercial applications where thorough mechanical cleaning of small-diameter tubing is needed. Typical use cases include cleaning copper or steel tube ends before flaring or soldering, clearing debris from heat exchanger tubes, and scrubbing the interior walls of conduit or small pipe sections. The stainless steel bristle construction holds up to repeated use without shedding or deforming under normal service conditions. The female threaded connection at 12-24 allows integration with standard brush extension systems.

Key Features

• Double stem, single spiral construction provides consistent bristle contact around the full tube interior
• 3/8 inches brush diameter fits small-bore tube and pipe cleaning applications
• Stainless steel bristles resist corrosion and maintain stiffness through repeated use
• 4 inches brush scraper length delivers effective cleaning coverage per pass
• 12-24 female threaded connection is compatible with standard extension rod systems
• Lightweight at 0.1 pounds for easy one-hand use or power-drive attachment

Compatibility

Designed as an OEM-style replacement and general-purpose tube brush for use with standard 12-24 threaded extension rods and brush drive handles in plumbing, HVAC, and maintenance applications requiring a 3/8-inch diameter cleaning profile.

Installation Notes

Thread the brush onto a compatible 12-24 extension rod or drive handle before use. Ensure the connection is fully seated to prevent the brush from detaching during operation. When using with a power drill or rotary drive, keep RPM within the handle or rod manufacturer recommendations to avoid bristle distortion. Wear appropriate eye protection when operating any tube brush in a rotary application.