Kärcher 2.644-420.0 pressure washer accessory, brush, 35 mm

The Kärcher 2.644-420.0 pressure washer accessory is a dedicated cleaning brush designed for use with OC 3 compatible pressure washers. With a brushing width of 35 mm, a depth of 200 mm and a height of 48 mm, this attachment is built to improve surface coverage and cleaning efficiency for a range of domestic cleaning tasks. The compact dimensions make it suitable for accessing narrow or detailed areas while maintaining consistent contact with the surface being cleaned.

Advantages

The brush offers a narrow 35 mm working width that allows precise cleaning along edges and within confined spaces. Its 200 mm depth and 48 mm height provide a stable brush profile for uniform pressure distribution during operation. As an OEM-compatible accessory from Karcher, it integrates with OC 3 series coupling systems to ensure secure attachment and reliable water flow. The design balances reach and control, helping reduce the need for manual scrubbing.

Suitable for

• Cleaning grout lines and narrow gaps
• Detail cleaning of window frames, door surrounds and trim
• Removing localized dirt on patios, steps and outdoor furniture
• Maintenance cleaning of vehicles in tight areas such as wheel wells and seams

Key specifications

• Brush working width: 35 mm
• Depth (front to back): 200 mm
• Height: 48 mm
• Compatibility: designed for OC 3 compatible pressure washer coupling systems
• Application type: hard-surface brushing accessory for domestic cleaning tasks

How to use

Attach the brush to the pressure washer's OC 3 compatible coupling according to the machine manufacturer’s instructions, ensuring a secure connection before operating. Use appropriate pressure and nozzle settings for the surface being cleaned; begin with a lower pressure and increase as needed to avoid damage. Move the brush in steady, overlapping passes to ensure even coverage and to allow the bristles to work dirt loose. Rinse the area after brushing to clear loosened debris. After use, flush the brush and coupling with clean water and allow to dry before storage.

Usage recommendations

Inspect the surface for sensitive materials and adjust pressure accordingly. Do not use the brush on delicate finishes without testing in an inconspicuous area. Regularly check the brush for wear and replace when bristles become misshapen or worn to maintain cleaning performance.