Schaefer Brush 43802 Spiral Tube Brush 0.25in Stainless Steel

Product Description

The SCHAEFER BRUSH 43802 is a double stem spiral tube brush designed for cleaning the interior of small-diameter tubes, ports, and passages. The brush features stainless steel bristles wound around a stainless steel double-stem wire construction, delivering durability and resistance to corrosion in wet or chemically active environments. At 0.25 inches in diameter and 4.75 inches overall length, with a 3-inch brush scraper length, this tool reaches into confined spaces where standard cleaning equipment cannot. It connects via an 8-32 female threaded fitting, allowing attachment to compatible extension rods or machine drive systems. HVAC technicians, plumbers, and industrial maintenance professionals use this brush for tube cleaning, port clearing, and general maintenance tasks.

This tube brush is suited for residential and commercial maintenance applications where small-bore tubes, heat exchanger ports, refrigerant lines, condensate drain passages, or similar confined channels require mechanical cleaning. The stainless steel bristle and stem construction holds up in environments exposed to moisture, mild chemicals, and elevated temperatures. Its compact 0.25-inch diameter targets tight-clearance passages that larger brushes cannot reach.

Key Features

• Double stem spiral construction provides consistent bristle contact along the full brush length
• Stainless steel bristles resist corrosion and hold shape under repeated use
• 0.25-inch diameter fits small-bore tubes and narrow passages
• 3-inch brush scraper length with 4.75-inch overall length for reach into confined spaces
• 8-32 female threaded connection compatible with standard extension rods and machine adapters
• Lightweight at 0.06 pounds for easy one-handed use

Compatibility

Designed as an OEM-style replacement and general-use tube brush for small-diameter tube cleaning applications in HVAC, plumbing, and industrial maintenance settings.

Installation Notes

This brush is installed by hand or with a compatible rotary drive tool by threading the 8-32 female fitting onto the appropriate extension rod or chuck adapter. Ensure the drive connection is fully seated before operating at speed to prevent separation inside a tube. Shut off and depressurize any system before inserting the brush into active lines or ports. Use appropriate personal protective equipment when cleaning passages that may contain chemical residue or debris.