Schaefer Brush 43728 Condenser Tube Brush 7/8 in Nylon

Product Description

The SCHAEFER BRUSH 43728 is a single stem spiral condenser tube brush designed for cleaning the interior of condenser tubes in HVAC and refrigeration systems. Built with nylon bristles, it handles light-to-moderate fouling and deposit removal without scratching tube walls. The brush measures 7/8 inch in diameter and 6-1/4 inches overall length, with a 4-inch brush section. The 12-24 female threaded connection allows it to attach to standard extension rods, making it compatible with most tube-cleaning rod systems used in the field. HVAC service technicians and refrigeration mechanics reach for this style of brush during condenser cleaning and preventive maintenance work.

This brush is suited for residential and light commercial HVAC applications where condenser tubes require periodic cleaning to maintain heat transfer efficiency. The spiral configuration helps work loose scale, biofilm, and soft deposits along the full length of a tube pass. It is used as a hand tool or attached to a cleaning rod assembly for deeper tube access on shell-and-tube condensers, chiller bundles, and similar heat exchangers.

Key Features

• 7/8 inch brush diameter sized for standard condenser tube bores
• Nylon bristles resist corrosion and are safe on copper, aluminum, and coated tube surfaces
• 4-inch brush length provides effective scrubbing coverage per pass
• 6-1/4 inch overall length for controlled handling in tight equipment access
• 12-24 female threaded connection compatible with standard tube-cleaning extension rods
• Single stem spiral design maintains consistent bristle contact around the tube bore

Compatibility

Designed for use with standard 12-24 threaded tube-cleaning rod systems. Fits condenser and heat exchanger tubes with an interior bore accepting a 7/8 inch brush diameter.

Installation Notes

Installation and use of this brush should be performed by a qualified HVAC or refrigeration technician. De-energize the system and relieve any system pressure before opening heat exchanger access points. Thread the brush onto a compatible 12-24 extension rod before inserting into the tube; never force an oversized brush through a tube bore. Follow equipment manufacturer guidelines and applicable safety procedures when working on refrigeration or chiller equipment.