Schaefer Brush 43753 Spiral Tube Brush 2.75in Nylon

Product Description

The SCHAEFER BRUSH 43753 is a single stem spiral tube brush designed for cleaning the interior of tubes, pipes, and cylindrical passages. The brush features a nylon bristle fill mounted on a nylon brush body, making it suitable for applications where non-metallic contact is required to protect sensitive surfaces. At 2.75 inches in diameter and 7.25 inches overall length, with a 5-inch brush scraper length, it reaches deep into bore openings without requiring disassembly of surrounding components. The male 1/4 inch NPSM threaded connection allows the brush to attach to standard extension rods or handles. HVAC technicians, plumbers, and maintenance professionals commonly use this type of brush for tube cleaning tasks during service and preventive maintenance.

This brush is suited for residential and light commercial maintenance applications where tube or pipe interiors require periodic cleaning. Typical uses include removing scale, debris, and buildup from heat exchanger tubes, condensate drain lines, and similar cylindrical passages. The nylon bristle construction makes it appropriate for use on aluminum, copper, and plastic tubing where wire bristles would risk surface damage. The threaded male connection enables use with compatible extension handles for added reach.

Key Features

• 2.75 inch brush diameter for cleaning standard tube and pipe bores
• 7.25 inch overall length with a 5 inch brush scraper section for deep-reach cleaning
• Nylon bristles and nylon brush body — non-metallic construction protects sensitive tube surfaces
• 1/4 inch male NPSM threaded connection for use with standard extension rods
• Lightweight at 0.32 pounds for easy one-hand operation

Compatibility

Designed as an OEM-style maintenance brush compatible with standard 1/4 inch NPSM threaded extension handles and rods for tube and pipe interior cleaning applications.

Installation Notes

Installation and use require no special licensing, but safe service practice calls for depressurizing and draining any line or heat exchanger before inserting the brush. Verify the NPSM threaded connection is fully engaged with the extension rod before applying rotational force to avoid stripping. Do not use this brush to clean energized electrical conduit or pressurized lines. Dispose of loosened debris according to applicable local environmental guidelines.