Schaefer Brush 31458 Brush Handle Extension 72 in

Product Description

The SCHAEFER BRUSH 31458 is a 72-inch galvanized steel brush handle extension designed to increase reach when working with tube brushes and scrapers. The extension measures 0.32 inches in diameter and features a 1/4-inch NPSM female connection at one end and a 1/4-inch NPSM male connection for coupling to compatible brush handles or additional extensions. Weighing 1.2 pounds, it is built for repeated use in industrial, mechanical, and HVAC maintenance environments. Galvanized steel construction resists corrosion and provides the rigidity needed to drive tube brushes through extended lengths of pipe or heat exchanger tubing.

This extension is suited for maintenance technicians and service professionals who need additional reach when cleaning boiler tubes, heat exchanger tubes, condenser tubes, or similar piping. It is commonly used in HVAC, plumbing, and industrial plant maintenance applications where access to tube interiors requires working at distance from the opening. The NPSM threaded connections allow the extension to be coupled directly to standard tube brush handles or stacked with additional extensions for greater depth.

Key Features

• 72-inch overall length extends reach for deep tube cleaning applications
• Galvanized steel construction for corrosion resistance and long service life
• 0.32-inch diameter shaft provides rigidity through the full extension length
• 1/4-inch NPSM female inlet and male outlet allow inline coupling with handles or other extensions
• Compatible with standard tube brushes and scrapers using 1/4-inch NPSM threading

Compatibility

Designed for use with tube brushes and scrapers equipped with 1/4-inch NPSM male threaded connections. The NPSM threading allows coupling to standard brush handles and additional handle extensions of the same thread spec.

Installation Notes

Installation and use require no special tools beyond hand-tightening the threaded NPSM connections. Ensure the system or equipment being serviced is shut down, depressurized, and cooled before inserting the extension into any tube or heat exchanger passage. Do not overtighten threaded connections, as NPSM is a straight thread and relies on a proper fit rather than tapered sealing. This accessory is intended for use by qualified maintenance technicians familiar with tube cleaning procedures.