RIDGID-204B Flex Shaft Drain Cleaner for 50-150mm Drain Pipes
Product Description
Professional Flex Shaft Drain Cleaner for Faster Pipe Cleaning
The RIDGID-204B Flex Shaft Drain Cleaner is a professional battery-powered drain cleaning solution designed for plumbers, drain contractors, and maintenance professionals. Combining a high-speed rotating flex shaft with durable chain knockers, it quickly breaks through blockages while thoroughly cleaning pipe walls in a single operation.
Unlike traditional cable machines, this flex shaft drain cleaner removes grease, scale, soap residue, roots, and soft blockages without causing unnecessary damage to the pipe.

Whether you're servicing residential kitchens, commercial drainage systems, or bathroom waste lines, the RIDGID-204B delivers fast, efficient, and reliable cleaning performance.
Key Features
High-Speed Cleaning Performance
Powered by an 18V lithium battery, the machine operates at 1,000–2,000 RPM, providing powerful rotational force for efficient drain cleaning.
Three Cleaning Modes
One machine performs three essential functions:
- Break through blockages
- Crush stubborn deposits
- Clean pipe walls thoroughly
This significantly reduces repeat service calls while restoring optimal pipe flow.
Long 21.3m Flexible Shaft
The 21.3-meter (70 ft) flex shaft reaches long drain runs with ease, making it ideal for:
- Residential plumbing
- Commercial buildings
- Restaurants
- Apartment maintenance
- Indoor and outdoor drainage systems
Dual Chain Knockers Included
Supplied with both:
- 2" Smooth Chain Knocker
- 4" Smooth Chain Knocker
These rotating chains effectively remove:
- Grease buildup
- Soap scum
- Mineral scale
- Sludge
- Tree roots
- Organic debris
Cordless Battery Operation
The cordless 18V lithium battery design provides:
- Excellent portability
- No power cord limitations
- Convenient indoor operation
- Faster setup on job sites
Flexible Shaft Design
Compared with traditional drain snakes, the flexible shaft rotates at much higher speed, allowing the chain knockers to clean the entire pipe wall instead of only punching through the blockage.
This results in cleaner pipes and longer-lasting drainage performance.

Applications
The RIDGID Drain Cleaning Machine is suitable for:
- Residential drain cleaning
- Kitchen drain maintenance
- Bathroom drain cleaning
- Commercial plumbing
- Property management
- Restaurants
- Hotels
- Schools
- Hospitals
- Office buildings
- Preventive pipe maintenance
Technical Specifications
| Item | Specification |
|---|---|
| Model | RIDGID-204B (K9-204B) |
| Product Type | Flex Shaft Drain Cleaner |
| Cleaning Pipe Size | 50–150 mm |
| Pipe Wall Cleaning Size | 50–100 mm |
| Flex Shaft Length | 21.3 m |
| Shaft Diameter | 8 mm |
| Chain Knockers | 2" & 4" Smooth Chain Knockers |
| Power Source | 18V Lithium Battery |
| Speed | 1000–2000 RPM |
| Cleaning Methods | Penetrating, Crushing, Pipe Wall Cleaning |
| Removes | Grease, Scale, Soft Blockages, Tree Roots |
| Applications | Indoor & Outdoor Drain Pipes |
Why Choose RIDGID-204B?
✔ High-speed flex shaft technology
✔ Thorough pipe wall cleaning
✔ Cordless 18V battery operation
✔ Long 21.3m cleaning reach
✔ Dual chain knockers included
✔ Suitable for residential and commercial applications
✔ Easy transportation and quick setup
Standard Accessories
| Included Accessories | Description |
|---|---|
| Two Chain Knockers | Different chain knockers for various pipe sizes and cleaning tasks |
| Foot Pedal | Hands-free operation for improved safety and convenience |
| Battery Charger | Fast charging for the 18V lithium battery |
| Control Panel | Simple speed and operation control |
| Flexible Shaft Assembly | Durable high-speed shaft with chain knocker system |
FAQ
What pipe sizes can the RIDGID-204B clean?
The machine is designed for 50–150 mm (2"–6") drain pipes, with optimal pipe wall cleaning performance in 50–100 mm pipes.
What types of blockages can it remove?
It effectively removes:
- Grease
- Soap residue
- Mineral scale
- Soft obstructions
- Sludge
- Tree roots
Is this a cordless machine?
Yes. The RIDGID-204B uses an 18V lithium battery, providing cordless operation and excellent portability.
Where can this machine be used?
It is suitable for:
- Homes
- Commercial buildings
- Restaurants
- Hotels
- Apartment maintenance
- Indoor and outdoor drainage systems
Call To Action
Looking for a Professional Flex Shaft Drain Cleaner?
The RIDGID-204B Flex Shaft Drain Cleaner delivers powerful pipe wall cleaning with cordless convenience, making it an ideal solution for professional plumbers and drain cleaning contractors.
Contact us today to request pricing, technical support, or OEM/ODM solutions.

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