The Kohler K-11748-K-NA and K-11748-KS-NA are both Rite-Temp pressure-balancing valves designed to control water flow and temperature, but they have some key differences that may influence your choice based on your needs.

1. Diverter Feature:

   • The K-11748-K-NA is a pressure-balancing valve without a diverter. It is designed to pair with compatible bath and shower trims for maintaining a consistent temperature, making it suitable for systems that don't require a diverter.
   • In contrast, the K-11748-KS-NA includes a push-button diverter. This means it can divert water between two outlets (like a showerhead and a handshower), which adds functionality to your plumbing system.

2. Built-in Stop Valves:

   • The K-11748-K does not come with built-in stop valves. This means that if you need to shut off water for servicing, you would need to do so at the main supply line.
   • The K-11748-KS features screwdriver stop valves within the valve itself. This allows for easy shut-off directly at the valve, giving you greater control during maintenance or repairs without affecting the entire plumbing system.

3. Application Flexibility:

   • If you're setting up a simpler shower without the need for multiple outputs or diverter functionality, the K-11748-K-NA can be a cost-effective option.
   • The K-11748-KS-NA would be more advantageous in configurations requiring a diverter, especially in setups that include multiple water outlets.

4. Functionality and Compatibility:

   • Both models maintain high temperature limits and optimal comfort zones for user safety, ensuring that water temperature does not exceed a safe level. They are both compatible with Kohler's bath and shower trim collections.

In summary, if you require a valve with diverter functionality and built-in shut-off options, the K-11748-KS-NA would be the better choice. For a basic installation without diverter needs, the K-11748-K-NA remains a solid option. More details can be explored further through their respective product pages on Kohler’s website.

Sources

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