Single Lever Ceramic Cartridge for Zurn JH02BD RK7300

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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

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Single Lever Ceramic Cartridge for Zurn JH02BD RK7300 - Image 6

WHAT OUR CUSTOMERS SAY…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”

-Kimberly S.

04/25/2026

$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.

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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.