10" Green Nylon Bi-Level Wash Brush – OEM Replacement Part

Part Number: 6638
Category: Pressure Washer Accessories → Wash Brushes → Bi-Level Vehicle Wash Brushes
Type: 10" Green Nylon Bi-Level Flow-Through Wash Brush

The 10" Green Nylon Bi-Level Wash Brush (Part #6638) is a professional-grade flow-through wash brush designed for vehicle washing, fleet maintenance, soft washing, equipment cleaning, and commercial wash-down applications. Featuring a bi-level (Hi-Lo) brush design, this brush conforms easily to curved and uneven surfaces, providing superior cleaning contact across vehicle panels, body contours, and equipment surfaces.

Key Features & Benefits

• Genuine OEM replacement wash brush
• Hi-Lo bi-level brush design
• Flow-through water-fed construction
• Durable Nylex® nylon bristles
• Excellent chemical and acid resistance
• Threaded handle connection
• Compatible with short or telescoping handles
• Multi-angle cleaning capability
• Brush block resists warping
• Does not absorb chemicals or water

Technical Specifications

Part Number: 6638

Product Type: Bi-Level Flow-Through Wash Brush

Brush Width: 10 Inches

Brush Style: Hi-Lo / Bi-Level

Bristle Material: Nylex® Nylon

Trim Length: 2"

Handle Connection: Threaded Hole

Water Feed: Flow-Through Design

Chemical Resistance: Excellent

Acid Resistant: Yes

Application: Vehicle, Fleet & Equipment Washing

OEM Replacement: Yes

Typical Applications

• Truck washing
• Fleet vehicle cleaning
• RV washing
• Bus washing
• Soft washing applications
• Agricultural equipment cleaning
• Construction equipment washing
• Building exterior cleaning
• Marine and boat cleaning
• Commercial wash-down operations

Performance Advantages

• Bi-level design improves cleaning contact on curved surfaces
• Flow-through construction continuously delivers water through the brush
• Nylex® bristles provide excellent durability and cleaning performance
• Outstanding resistance to detergents, acids, and cleaning chemicals
• Multi-angle design improves cleaning efficiency
• Brush block will not warp, swell, or absorb chemicals
• Compatible with telescoping poles for extended reach
• Ideal for professional fleet washing and maintenance programs
• Long service life in demanding commercial environments

Why Choose a Flow-Through Brush?

Flow-through brushes offer several advantages:

• Constant water delivery directly through the brush head
• Improved rinsing of dirt and contaminants
• Reduced surface scratching from trapped debris
• Faster cleaning and rinsing performance
• Increased efficiency for large-scale washing operations

Maintenance Recommendations

• Rinse thoroughly after each use, especially after acid or chemical applications.
• Flush clean water through the brush to remove residue.
• Inspect bristles regularly for wear or damage.
• Check threaded connections before operation.
• Allow the brush to dry completely before storage.
• Store in a clean, dry location.
• Replace the brush when bristle wear begins to affect cleaning performance.