Schaefer Brush 43573 Spiral Tube Brush 4.5in Stainless Steel

Product Description

The SCHAEFER BRUSH 43573 is a double stem, double/single spiral tube brush designed for cleaning the interior of tubes, pipes, and cylindrical openings. Built with stainless steel bristles and a stainless steel brush body, it delivers durable scrubbing action in demanding industrial and trade applications. The brush measures 4.5 inches in diameter and 7.25 inches overall length, making it well-suited for medium-bore tube cleaning tasks. Connection is made via a 1/4 inch male NPSM fitting, allowing secure attachment to extension rods or standard brush handles. It weighs 0.62 pounds. Trade professionals in HVAC, plumbing, and industrial maintenance rely on this type of brush for tube sheet cleaning, condenser tube service, and boiler maintenance.

This brush is intended for use in applications requiring aggressive mechanical cleaning of tube interiors with corrosion-resistant tooling. The stainless steel construction makes it appropriate for use in wet, oily, or mildly corrosive environments where carbon steel bristles would degrade prematurely. Typical install scenarios include condenser and evaporator tube cleaning during HVAC service, heat exchanger maintenance, and plumbing pipe preparation. The 1/4 inch male NPSM connection is compatible with standard brush extension rod systems used in tube cleaning equipment.

Key Features

• Double stem, double/single spiral construction provides thorough interior tube contact
• Stainless steel bristles resist corrosion in wet and mildly chemical environments
• 4.5 inch brush diameter for medium-bore tube cleaning applications
• 7.25 inch overall length suits standard tube depth access
• 1/4 inch male NPSM connection fits common extension rod systems
• Lightweight at 0.62 pounds for extended use without fatigue

Compatibility

Designed as an OEM-style tube brush replacement compatible with standard 1/4 inch male NPSM brush extension rod systems used in tube and pipe cleaning equipment.

Installation Notes

Installation and use of tube brushes is typically performed by HVAC technicians, plumbers, or industrial maintenance personnel. Before beginning tube cleaning, ensure the system is fully depressurized, drained, and isolated from power or flow sources. Thread the 1/4 inch male NPSM connection securely into the extension rod fitting before inserting the brush into the tube. Do not force the brush into undersized tubes, as this can damage bristles and tube walls.