Pioneer X-4400005 Pressure Balance Spool

chat iconWHAT OUR CUSTOMERS SAY…

“They had my part shipped the same day. I mistakenly checked that I would pick the part up at the store and they fixed it in minutes. ”
-Michael F.
01/04/2026

$44.27

 

The Pioneer X-4400005 is a pressure balance spool used as a replacement part for single-handle tub and shower valves. It is designed to maintain steady water temperature and prevent sudden fluctuations (scald protection) during use.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 20512 Categories: , Tag:

Restore your shower’s safety with the Pioneer X-4400005. This crucial internal spool, measuring 2 3/8 inches in length, balances hot and cold water pressure to prevent dangerous temperature spikes and scalding in single-handle shower systems.

 

X-4400005

 

  • It acts as a balancing mechanism within the valve to ensure safety and user comfort by stabilizing water temperature.
  • Fits 4010B 1910B & 4011B series valves
  • 2 3/8″ length

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Love Noel's Plumbing Supply! They are one of my favorite oddball plumbing parts purveyors. As a professional plumber, I rely on sites like Noel's to keep antique and rare fixtures alive. My customers and I are so grateful! ”
-Danielle E.
03/25/2026