Delta has used three different valve designs in its single handle faucets, plus stem units in its two handle faucets and four generations of shower cartridges. They are not interchangeable, and the wrong part is the most common reason a Delta repair fails. This page sorts out which one you have.
New to faucet repair? Start here explains what is inside a faucet, which tools you need, and how to shut off the water, in plain language. If you do not know the model, see how to identify your Delta cartridge without a model number or how to find your brand and model. Words you do not recognize are in the glossary.
You may not need to buy anything
Delta’s Lifetime Limited Warranty covers parts and finish for as long as the original purchaser owns the home. Call 1-800-345-DELTA (1-800-345-3358), weekdays 8 a.m. to 8 p.m. Eastern, with the model number, and Delta will usually ship the cartridge or repair kit at no charge. Registering the faucet at deltafaucet.com speeds this up. If you need the faucet working today, the parts are available from Delta directly and from Home Depot.
- RP3614 ball type repair kit at DeltaFaucet.com
- RP50587 DIAMOND cartridge at DeltaFaucet.com
- RP19804 Monitor shower cartridge at DeltaFaucet.com
- RP46074 MultiChoice shower cartridge at DeltaFaucet.com
Which Delta valve do I have?
| Valve type | How to recognize it | Repair part |
|---|---|---|
| Ball type (single handle) | Under the handle is a rounded dome cap, often with a notched brass adjusting ring. Inside is a slotted metal ball sitting on two rubber seats and springs. Found in Delta kitchen and bathroom faucets from the 1950s through today’s Foundations line. | RP3614 repair kit (seats, springs, cam, O-rings). Add an RP70 ball (lever) or RP212 (knob) if the ball is scored. |
| DIAMOND Seal (single handle) | Model number ends in -DST. A ceramic cartridge sits under a flat bonnet nut. No seats and springs. Found in Leland, Essa, Trinsic, Cassidy, Addison, Classic 100/400, Lahara, and almost every Delta sold since about 2010. | A DIAMOND cartridge: RP50587 for most models, RP60114 (Trinsic, Cassidy) or RP73000 (Essa) for Euro-Motion models, RP60400 for two handle DST. |
| Two handle stem | Separate hot and cold handles. Each handle sits on a stem unit with a bonnet nut. Older ones also have seats and springs under the stem. | Model specific: RP47422 ceramic pair, RP54801 (Porter, Foundations B2511LF), RP24096 / RP42096 (Windemere), RP25513. |
| Monitor 1300 / 1400 shower | Single handle shower valve installed before March 2006. White cap on the cartridge. | RP19804 |
| MultiChoice 13 / 14 shower | Single handle shower valve installed after March 2006 (R10000 body). Grey cap. | RP46074 |
| Monitor 1700 / 1800 shower | Two controls on one valve (volume and temperature), before March 2007. White top. | RP32104 |
| MultiChoice 17 shower | Volume and temperature controls, after March 2006. Grey top. | RP46463 |
The fastest tell on a sink faucet: if the model number on the box, under-sink tag, or Delta’s website ends in DST, it is a DIAMOND Seal cartridge. If there is a dome cap and a slotted ball under the handle, it is ball type. For showers, pull the handle and look at the color of the cartridge cap. White is the older Monitor series; grey is MultiChoice.
Fix by symptom
- Drip from the spout on a ball type faucet: replace the seats and springs (RP3614)
- Drip from the spout on a DST faucet: replace the DIAMOND cartridge (RP50587)
- Shower drips, runs, or will not get hot: replace the Monitor or MultiChoice cartridge
- Two handle faucet drips: replace the stem unit
- Hot and cold are backwards
- Leak from under the handle or around the cap
- Low pressure or weak spray
- Touch2O faucet not responding
Fix by model
- Leland 9178-DST (kitchen pull-down)
- Essa 9113-DST (kitchen pull-down)
- Trinsic 9159-DST (kitchen pull-down)
- Foundations B4410LF (kitchen, ball type)
- Classic 100-DST / 400-DST (kitchen)
- Lahara 3538 (bathroom widespread)
- Addison 9192-DST (kitchen pull-down)
- Cassidy 9197-DST (kitchen pull-down)
- Pivotal 9193-DST and 9993-DST (kitchen)
- Kate 16970-SD-DST (kitchen pull-down)
- Linden 4353-DST (kitchen pull-out)
- Talbott 16968-SSSD-DST (kitchen pull-down)
- Porter 25984LF (bathroom two handle)
- Windemere 35996LF (bathroom widespread)
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