RIDGID FlexShaft K9-204+ Review – Professional Drain Cleaning Machine for 2" to 4" Pipes

Wed, 17 Jun 2026 09:57:52 +0000

⁣Looking for a professional drain cleaning machine capable of restoring clogged pipes to full flow capacity?

In this video review, we take a closer look at the RIDGID FlexShaft K9-204+, a commercial-grade drain cleaning system designed for plumbers, drain cleaning specialists, maintenance professionals, and contractors working with 2-inch to 4-inch pipe systems.

Featuring a 70-foot FlexShaft cable, wall-to-wall chain knocker cleaning technology, enclosed cable housing, and compatibility with cordless drills, the K9-204+ delivers powerful and efficient pipe cleaning for residential and commercial applications.

Key Features:

• Professional Drain Cleaning Machine
• Cleans 2" to 4" Pipes
• 70-Foot FlexShaft Cable
• Wall-to-Wall Pipe Cleaning
• Fully Enclosed Cable System
• Cordless Drill Powered Operation
• Improved Cable Protection
• Easy Machine Access Design

Perfect For:

• Professional Plumbers
• Drain Cleaning Contractors
• Commercial Plumbing
• Residential Drain Maintenance
• Sewer Line Cleaning
• Pipe Restoration
• Preventive Maintenance
• Property Management Services

Wall-to-Wall Pipe Cleaning

The FlexShaft system uses a chain knocker that expands inside the pipe to clean the entire inner wall rather than simply creating a small opening through blockages.

Benefits include:

• Thorough Pipe Cleaning
• Improved Flow Capacity
• Removal of Grease Build-Up
• Removal of Scale Deposits
• Better Long-Term Results

70-Foot FlexShaft Cable

The machine includes a durable 70-foot cable enclosed in a flexible protective sheath.

Advantages include:

• Extended Reach
• Cleaner Operation
• Reduced Jobsite Mess
• Improved Cable Protection
• Easier Maintenance

Compatible with Standard Cordless Drills

The RIDGID K9-204+ operates using a standard cordless drill running between 1800 and 2500 RPM.

Benefits include:

• Simple Operation
• No Dedicated Motor Required
• Easy Transportation
• Reduced Equipment Weight
• Convenient Setup

Enhanced K9-204+ Improvements

This upgraded model introduces several useful enhancements:

• Improved Cable Clamp Design
• Easier Machine Access Latches
• Onboard Hex Key Storage
• Better Cable Protection
• Improved Serviceability

Professional Cleaning Accessories

Compatible with multiple cleaning attachments, including:

• Chain Knockers
• Carbide Chains
• Penetrating Heads
• Cleaning Brushes
• Specialty Attachments

Who Is This Drain Cleaning Machine For?

The RIDGID FlexShaft K9-204+ is designed primarily for professional plumbers, drain cleaning specialists, maintenance teams, commercial service providers, and contractors who require efficient wall-to-wall pipe cleaning performance.

Watch the video to see the FlexShaft system, cleaning mechanism, cable design, and professional features before purchasing.