Introduction
This manual provides instructions for the installation, operation, and maintenance of your KOHLER Purist Shower Arm and Flange, model K-933-2MB. This shower arm is designed to complement various KOHLER showerheads, featuring a durable metal construction and a Vibrant Brushed Moderne Brass finish for lasting elegance and ease of cleaning.

Image: The KOHLER Purist Shower Arm and Flange in Vibrant Brushed Moderne Brass, showcasing its design and finish.

Image: A side view of the KOHLER Purist Shower Arm and Flange, highlighting its curved design and connection point.

Image: An overview of KOHLER finishes, illustrating the quality and durability standards applied to products like the Purist Shower Arm.
Finish Overview
The Vibrant Brushed Moderne Brass finish is designed for durability and aesthetic appeal. This finish undergoes rigorous testing to ensure long-lasting quality, resistance to scratches, stains, and corrosion, and is hand-inspected for coating adherence.
Video: This video showcases the aesthetic qualities and vibrant finish of KOHLER's Brushed Moderne Brass products, including faucets and shower components.
Safety Information
Always turn off the water supply before beginning any installation or maintenance. Wear appropriate personal protective equipment, such as safety glasses and gloves. If you are unsure about any step, consult a qualified plumber.
Package Contents
- KOHLER Purist Shower Arm
- Flange
Note: Additional hardware such as a showerhead, pipe nipple, and thread sealant are sold separately and are required for complete installation.
Installation Instructions
This shower arm is designed for wall-mount installation with a 1/2"-14 NPT connection.
- Prepare Wall Connection: Ensure the existing 1/2-inch pipe nipple extends adequately from the finished wall. A minimum protrusion of 1 inch is recommended. For optimal thread engagement and a secure fit, a protrusion of approximately 1-1/8 inches or slightly more may be beneficial.
- Apply Thread Sealant: Apply plumber's tape or thread sealant to the threaded end of the pipe nipple extending from the wall.
- Attach Shower Arm: Carefully thread the KOHLER Purist Shower Arm onto the pipe nipple. Hand-tighten first, then use a wrench to tighten securely. Ensure the shower arm is oriented correctly, with the angled end pointing downwards, to accommodate your showerhead.
- Install Flange: Slide the decorative flange over the shower arm until it sits flush against the finished wall, covering the connection point.
- Connect Showerhead: Attach your desired KOHLER showerhead (sold separately) to the threaded end of the shower arm. Hand-tighten, then use a wrench to secure, ensuring a watertight seal.
- Test for Leaks: Turn on the water supply and check all connections for leaks. Tighten any leaking connections as necessary.
Operating Instructions
Once installed, the KOHLER Purist Shower Arm and Flange functions as a fixed component of your shower system. Operation involves turning on your shower faucet to activate water flow through the shower arm to the connected showerhead. No specific operational adjustments are made directly to the shower arm itself.
Care and Maintenance
To maintain the finish and performance of your KOHLER Purist Shower Arm and Flange, follow these guidelines:
- Regular Cleaning: Clean regularly with a soft, damp cloth.
- Avoid Harsh Cleaners: Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish.
- Recommended Cleaner: For best results, use KOHLER Premium Faucet Cleaner (SKU # K-EC23723-NA) to remove dirt, grime, and residue, restoring the appearance and leaving a streak-free shine. This cleaner is safe for all KOHLER faucet finishes, ammonia and alcohol-free. Hold the sprayer 6-8 inches from the surface, spray, then wipe with a dry towel or cloth.

Image: A person demonstrating the use of KOHLER Faucet Cleaner to maintain the shine and cleanliness of a faucet, applicable to the shower arm's finish.
Troubleshooting
If you encounter issues, refer to the following common solutions:
- Leakage at Wall Connection: If water leaks from where the shower arm connects to the wall, ensure the pipe nipple is adequately threaded into the wall and the shower arm is securely tightened with thread sealant.
- Leakage at Showerhead Connection: If water leaks from where the showerhead connects to the shower arm, verify the showerhead is properly threaded onto the shower arm and tightened. Applying plumber's tape to the showerhead threads may improve the seal.
- Loose Flange: If the decorative flange is loose, ensure the shower arm is fully tightened into the wall connection, which should hold the flange firmly against the wall.
Specifications
| Feature | Detail |
|---|---|
| Brand | Kohler |
| Model Name | Purist |
| Model Number | K-933-2MB |
| Color | Vibrant Brushed Moderne Brass |
| Material | Metal (Brass) |
| Mounting Type | Wall Mount |
| Connection Type | 1/2"-14 NPT |
| Item Weight | 1 Pound |
| Compliance | ASME A112.18.1/CSA B125.1 |
Warranty Information
This KOHLER Purist Shower Arm and Flange is covered by the KOHLER Faucet Lifetime Limited Warranty. This warranty covers defects in material and workmanship for the original consumer purchaser. For complete details regarding terms, conditions, and limitations of the warranty, please refer to the official KOHLER website or contact customer support.
Support Information
For further assistance, technical support, replacement parts, or warranty claims, please contact KOHLER Customer Service. You can find up-to-date contact information, including phone numbers and online support resources, on the official KOHLER website: www.kohler.com.