Single Lever Ceramic Cartridge for Zurn JH02BD RK7300

“Cartridge for American Standard Aquarian 57864-0070A” has been added to your cart. View cart

Tan plastic cartridge with blue top red limit stop metal handle adapter with black oring and bottom seal.

Single Lever Ceramic Cartridge for Zurn JH02BD RK7300 - Image 2

Single Lever Ceramic Cartridge for Zurn JH02BD RK7300 - Image 3

Single Lever Ceramic Cartridge for Zurn JH02BD RK7300 - Image 4

Single Lever Ceramic Cartridge for Zurn JH02BD RK7300 - Image 5

Single Lever Ceramic Cartridge for Zurn JH02BD RK7300 - Image 6

WHAT OUR CUSTOMERS SAY…

“I texted him a picture of the shower part from the 50’s I needed and he was able to identify it immediately. I ordered it and it showed up in two days! Very knowledgeable and friendly! ”

-Jim F.

02/04/2026

$54.17

The Zurn RK7300 is for Zurn Temp-Gard III shower and tub valves, this cartridge is designed to maintain consistent water temperature in commercial and residential showers.

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.

Share on:

Pressure Balance Cartridge for Zurn

RK7300

It senses pressure differences between hot and cold water lines and adjusts automatically to maintain a steady water temperature, preventing sudden changes or scalding risks when other water sources in the building are used (like a toilet flushing).
It is specifically designed for use with Zurn Temp-Gard III shower and tub valves.
3″ length
40 MM Diameter

Customer submitted images.