Schaefer Brush 43704 Condenser Tube Brush 3/8 in Nylon

Product Description

The SCHAEFER BRUSH 43704 is a single stem spiral condenser tube brush designed for cleaning the interior of condenser tubes and heat exchanger tubes in HVAC and refrigeration systems. Built with nylon bristles, it removes scale, debris, and fouling from tube walls without damaging softer tube materials. The brush measures 3/8 inches in diameter with an overall length of 6.25 inches and a brush or scraper length of 4 inches. The 12-24 female threaded connection allows attachment to standard extension rods for deeper tube access. HVAC technicians and refrigeration service pros use this brush as part of routine condenser maintenance to sustain heat transfer efficiency.

This brush is suited for residential and light commercial HVAC and refrigeration condenser service. It fits tube inside diameters sized for 3/8 inch brushes and is used with compatible extension rod systems during coil and heat exchanger cleaning. Typical applications include cleaning copper or aluminum condenser tubes in chillers, shell-and-tube heat exchangers, and similar equipment where tube-side fouling accumulates over time. The nylon bristle construction makes it appropriate for softer tube materials where metal bristles would cause scoring.

Key Features

• Single stem spiral design provides consistent bristle contact along the full tube bore
• Nylon bristles clean effectively without scratching or scoring softer tube materials
• 3/8 inch brush diameter for common condenser tube sizes
• 6.25 inch overall length with 4 inch brush or scraper length for controlled reach
• 12-24 female threaded connection compatible with standard extension rod systems
• Lightweight at 0.08 pounds for easy single-hand use during service

Compatibility

Designed for use with standard 12-24 threaded extension rod systems. Fits condenser tubes and heat exchanger tubes sized for a 3/8 inch diameter tube brush. Verify tube inside diameter before selection to ensure proper bristle contact and cleaning performance.

Installation Notes

Installation of this brush is performed by licensed HVAC technicians or refrigeration service professionals during scheduled maintenance. Shut down and lock out the system before inserting any brush into active condenser tubes. Thread the brush securely onto the extension rod before use to prevent separation inside the tube. Follow equipment manufacturer service procedures and applicable safety guidelines when accessing heat exchanger components.