Schaefer Brush 43604 Tube Brush 3/8 in Brass Bristles

Product Description

The SCHAEFER BRUSH 43604 is a double stem, single spiral tube brush designed for cleaning the interior of tubes, pipes, and small-diameter bores. It measures 3/8 inch in diameter with an overall length of 6.25 inches and a brush or scraper length of 4 inches. The bristles and brush body are both constructed from brass, making this brush well suited for applications where a non-sparking, corrosion-resistant cleaning tool is required. The 12-24 female threaded connection allows it to attach to compatible extension rods or handles. This brush is typically used by HVAC technicians, plumbers, and maintenance professionals who need reliable tube cleaning in confined spaces.

This tube brush is appropriate for residential and light commercial maintenance tasks involving tube or pipe interior cleaning, deburring, and surface preparation. Common applications include cleaning heat exchanger tubes, copper pipe fittings, and small-diameter conduit or bore passages. The brass construction makes it suitable for use on softer base materials where steel bristles would cause scoring or damage. The female threaded end allows connection to standard extension rods for reaching deeper into tube runs.

Key Features

• Double stem, single spiral construction provides consistent bristle contact along the full brush length
• Brass bristles and brass brush body resist corrosion and are non-sparking
• 3/8 inch diameter fits standard small-bore tube and pipe interior cleaning applications
• 4-inch brush length covers a practical cleaning stroke in a single pass
• 12-24 female threaded connection is compatible with standard extension rod systems
• Compact 6.25-inch overall length allows use in tight or restricted access areas

Compatibility

Designed as an OEM-style replacement or direct-use tube brush for residential and commercial maintenance applications requiring a 3/8-inch diameter brass tube brush with a 12-24 female threaded connection.

Installation Notes

This brush is installed by hand or with a drill, depending on the application and access. Ensure the tube or bore being cleaned is depressurized and isolated from fluid or gas flow before inserting the brush. Verify that the 12-24 female thread connection is fully engaged with any extension rod before use to prevent separation during operation. Brass bristles are intended for softer base materials and should not be used as a substitute for steel-bristle brushes where heavy-deposit removal is required.