Schaefer Brush 93504 Tube Brush 3/8 in Stainless Steel

Product Description

The SCHAEFER BRUSH 93504 is a double stem, single spiral tube brush designed for cleaning the interior of tubes, pipes, and bores. The brush features stainless steel bristles mounted on a stainless steel construction, making it suitable for use in environments where corrosion resistance and durability are required. The overall length is 6.25 inches, with a brush diameter of 0.375 inches and a brush length of 4 inches. It connects via an 8-32 male threaded fitting, allowing it to be used with compatible extension handles or power drive equipment. HVAC technicians, plumbers, and maintenance professionals commonly use this type of brush for cleaning heat exchanger tubes, condensate drain lines, and small-bore pipe fittings.

This tube brush is suited for light-duty cleaning tasks in residential and commercial HVAC, plumbing, and general maintenance applications. Its compact diameter makes it well-suited for accessing narrow tubes and passages where larger brushes cannot fit. The 8-32 male threaded connection provides a secure attachment point for extension rods or power brushing equipment. It is sold and packaged individually.

Key Features

• Double stem, single spiral construction provides consistent bristle contact along the full brush length
• Stainless steel bristles resist corrosion and hold up to repeated use in wet or chemically active environments
• 0.375 inch brush diameter for cleaning narrow tubes and small-bore passages
• 4 inch brush length with 6.25 inch overall length for reach into tight spaces
• 8-32 male threaded connection compatible with standard extension handles and drive equipment
• Lightweight at 0.1 pounds for easy one-handed use

Compatibility

Designed for use with standard 8-32 threaded extension rods and compatible power brushing equipment. Suitable as a cleaning tool in residential and commercial HVAC, plumbing, and general maintenance applications requiring a 3/8 inch diameter tube brush.

Installation Notes

Thread the 8-32 male connection securely into a compatible extension handle or chuck before use. Ensure the system or equipment being cleaned is powered down, depressurized, and isolated before inserting the brush into any tube or pipe. Use appropriate personal protective equipment when working with cleaning chemicals or in confined spaces. Inspect the bristles and stem for wear or deformation before each use and replace if damaged.