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Quick answer
RP19804 is the single-function pressure-balance cartridge for Delta Monitor 1300/1400 series tub and shower valves made before March 2006. Delta's page title says "04/2006 and earlier".
Where to buy: genuine parts from Delta.
Delta RP19804 on deltafaucet.com Delta RP4993 seats & springsWhat it fits
- Monitor 1300/1400 series tub/showers produced before March 2006.
- Delta says the current RP19804 (shipping since 2015) "can replace any Monitor series using an RP19804", including the older versions with different leg colors.
How to recognize it
- White upper housing and a shorter lower housing. Older versions have blue or off-white legs.
- Compare with RP46074, which has a gray upper housing and a longer lower housing and fits the post-2006 MultiChoice valves.
Parts around it (Delta 1300/1400 diagram)
| Part | What it is |
|---|---|
| RP19804 | Valve cartridge |
| RP4993 | Seats & springs (2 each) |
| RP19806 | Cap assembly |
| RP19805 | Housing assembly |
| RP19807 | Rotational limit stop |
| RP14414 | O-rings |
| RP22734 | Bonnet |
A Delta staff answer on the RP19804 page names RP4993 as the kit for rebuilding these valves. If the cartridge is new and the spout still drips, worn seats and springs are a common reason. See still dripping after replacement.
Sources
Fetched and checked 2026-10-21. Part numbers change; confirm against your own valve and the maker before buying.
