Replacement for Delta RP19804 Monitor 1300/1400 Series Cartridge
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You can fix this
Likely cause: a worn shower cartridge
A stiff single handle on other brands also comes down to the cartridge. Match it to your valve and replace it.
Why this happens
Moen's explanation for a stiff handle is sediment or debris in the cartridge, mineral buildup or a damaged seal, and those wear points live inside any single-handle shower cartridge. Other brands' cartridges are specific to their valves: Delta's 1300 and 1400 Monitor series take the RP19804, and its 13 and 14 series take the RP46074. Check your brand's support pages before regreasing; replacing the worn cartridge is the dependable fix.
How to fix it
- Shut off the water to the shower at its stops or the main. Cover the drain.
- Remove the handle and trim and look for a brand and model on the valve. Take a photo.
- Match the cartridge using the identification index below before ordering.
- Remove the old cartridge, install the new one in the same orientation, and turn the water on.
- Check the hottest setting with a thermometer and keep it at 120F or less, adjusting the limit stop by following your valve's guide.
- If you grease anything, use silicone grease only, never a petroleum-based product.
When to stop. If the cartridge will not come out, stop. Delta recommends a licensed plumber for tub and shower repairs if you do not have plumbing experience.
The part that fixes it
Each valve takes its own cartridge. The Pfister and Kohler cross-references come from retailer listings, so confirm against your valve.
Replacement for Delta RP46074 MultiChoice 13/14 Series Cartridge
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Replacement for Kohler GP500520 Rite-Temp Pressure Balance Unit
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Replacement for Kohler GP876851 Mixer Cap and Pressure Balance Kit
Cross-references GP76851, GP800820, GP77759, Sterling A2758. Valves K-304, K-11748.
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Replacement for Pfister 974-042 and 974-5299 0X8 Shower Cartridge
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Replacement for Grohe 47080000 Tempress II Pressure Balance Cartridge
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Replacement for Gerber Safetemp 97-022 and 97-014 Cartridge Kit
Also 92-294, for 49-400 and 49-700 valves. Cross-references Everbilt 43284, Kissler 46-7214, Jerich 97501.
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Replacement for Mixet MS-5AT Shower Cartridge
Post-1968 single-lever Mixet valves.
FourHome is our own brand of replacement parts; this site is published by the team behind it. We earn from purchases made through this link.
Not sure which part you have? Pull the old one and match it by brand, length and broach on Stems & Cartridges, an identification index of faucet stems and cartridges by part number.
If this does not fix it, tell the plumber
- It is a single-handle shower that is hard to turn, and the brand if you know it.
- A photo of the handle, trim and cartridge.
- Whether you already replaced the cartridge.
Build the full list: what to tell the plumber.
Start this troubleshooter over
References (every fact above comes from one of these pages)
Vent, Valve & Volt is published by the team behind FourHome. Browse all FourHome replacement faucet and shower parts on the FourHome Amazon store.