Schaefer Brush 43645 Tube Brush 2 in Brass Bristles

Product Description

The SCHAEFER BRUSH 43645 is a double stem, single spiral tube brush designed for cleaning the interior surfaces of tubes, pipes, and cylindrical bores. It features a 2-inch brush diameter and an 8-inch overall length, with a 4.5-inch brush and scraper length. The brass bristles resist corrosion and provide effective scrubbing action on metal, glass, and plastic surfaces without aggressive abrasion. The brush connects via a 1/4-inch NPSM male fitting, allowing it to thread directly onto extension rods or flexible drive shafts. HVAC technicians, plumbers, and maintenance professionals use this brush for tube sheet cleaning, condenser maintenance, heat exchanger service, and similar industrial cleaning applications.

This tube brush is suited for residential and light commercial HVAC service, plumbing maintenance, and industrial cleaning tasks where a 2-inch diameter brush is required. The brass construction makes it appropriate for use on copper tubing, brass fittings, and other surfaces where a softer bristle material is preferred to avoid scratching or gouging. The 1/4-inch NPSM male connection allows integration with standard cleaning rod systems commonly used in condenser and heat exchanger service work.

Key Features

• 2-inch brush diameter for cleaning standard tube and pipe bores
• 8-inch overall length with a 4.5-inch brush and scraper section
• Brass bristles provide corrosion-resistant, non-aggressive scrubbing action
• Double stem, single spiral construction maintains shape under repeated use
• 1/4-inch NPSM male connection threads onto standard extension rods and drive shafts

Compatibility

Designed as an OEM-style replacement and service tool for use in tube and pipe cleaning applications requiring a 2-inch diameter brush with a 1/4-inch NPSM male fitting.

Installation Notes

This brush is installed by hand or with a flexible drive system by licensed HVAC technicians, plumbers, or maintenance professionals. Always de-energize and lock out electrical equipment and isolate fluid systems before inserting any cleaning tool into tubes or heat exchangers. Ensure the 1/4-inch NPSM male connection is fully threaded onto the extension rod or drive shaft before use to prevent the brush from becoming dislodged inside the tube. Follow applicable safety and maintenance procedures for the equipment being serviced.