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Pressure Balance Shower Cartridge for Jacuzzi H40621B

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“They had the part for my old plumbing system, that I wasn't able find at other places. Helpful people at the counter. ”
-Aleksandre
08/18/2026

$68.27

 

The Jacuzzi H40621B is a 40mm single-handle ceramic shower cartridge designed for pressure-balanced tub and shower faucet systems. Manufactured by CW Metal, it functions as a critical internal replacement valve responsible for controlling water temperature mixing, regulating flow rate, and sealing the faucet to eliminate leaks.

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

SKU: 80315-3 Category: Tag:

Ensure optimal performance in tub and shower mixing valves with the Jacuzzi H40621B single-lever cartridge. This aftermarket plumbing repair component serves as an OEM-grade replacement to stop drips, handle leaks, and hot-cold crossflow. It features a high-grade plastic body housing dual ceramic sealing discs for maximum corrosion resistance and longevity.

 

H40621B

 

  • It is a replacement cartridge designed to fix leaks or inconsistent water flow in single-handle shower faucets. It is pressure-balanced to help maintain constant water pressure and features a temperature limit stop to avoid scalding.
  • The cartridge has a 40 mm diameter and an overall length of approximately 3 to 3.44 inches (7.25 inches including the adjustable stem).
  • 30 Point Broach

 

 

Customer submitted images. 

 

Common questions about this product

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.

 

 

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

Yes, this is the OEM recommended part.

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM part. 

chat iconWHAT OUR CUSTOMERS SAY…

“I spent the balance of 3 days looking locallyfor a replacement head for our Kitchen sink...only to find these guys with an exact fit and finish and lower than market pricing...I immediately ordered (an awesome website with smooth cart checkout). 20 minutes later I find a blown out gasket/ring that I was able to replace, and avoid having to replace entire spray head. I text there support line ( while the store was closed!) Requesting the order to be canceled. Within minutes and without hesitation or questions they had refunded my card and canceled the order. They have one of the largest online inventories, notably stocking harder to locate stuff and boasting a separate text line dedicated to recieve customer pics of parts/gear to ensure we are getting exactly what we need. Enough said. Bring your future plumbing problems/needs here and trust you will be taken care of...I know I will... @ Noels, thanks for continuing a tradition of honorable business practice, in a world that is littered with allot less... ”
-John M.
03/14/2026