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The UNION BRASS 80384 is a new-style splined diverter valve used to redirect water flow between two outlets in a plumbing fixture assembly. Splined diverters engage with a matching splined stem or cartridge to ensure positive rotation and consistent diversion without slippage. This part is typically installed by licensed plumbers or experienced service technicians during fixture repair or replacement work.
The 80384 suits residential and light commercial plumbing applications where a splined diverter is required to split or redirect flow, such as in tub and shower combinations or two-outlet faucet bodies. The new-style designation indicates an updated design intended to replace earlier-generation components in compatible fixture assemblies.
Designed as an OEM-style replacement splined diverter for compatible plumbing fixtures requiring this new-style configuration.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the water supply to the fixture before beginning disassembly. Confirm that the splined profile of the 80384 matches the existing stem or cartridge before finalizing installation. Standard plumbing hand tools are typically sufficient for this repair.
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