The BK Mueller, and ProLine 13.5" overall length stem is for the 10" faucets.

Let’s explore the details of the BK Mueller 888-563 13.5" OAL stem:

1. Brand and Model: BK Mueller
2. Part Number: 888-563
3. Overall Length (OAL): 13.5 inches
4. Function: The BK Mueller 888-563 stem plays a critical role in plumbing fixtures, such as faucets, shower valves, or outdoor hose bibs. It connects to the handle and regulates water flow.
5. Material: Typically crafted from durable materials like brass, this stem ensures longevity and reliable performance.
6. Application: You’ll find this stem in various plumbing scenarios, both in residential and commercial settings, where precise water control is essential.
7. Features: Depending on the specific model, the BK Mueller 888-563 stem may include features such as:
   • Anti-Scald Protection: Prevents excessively hot water from reaching the user, enhancing safety.
   • Ceramic Discs: Provides smooth operation and durability, reducing wear over time.
   • Replaceable Washers: Allows for maintenance and repair, ensuring long-lasting functionality.
8. Compatibility: Always refer to the manufacturer’s specifications to ensure compatibility with your specific plumbing system.