Which Shower Trim Kits Fit Your Valve? How to Tell by Brand

You found a shower trim kit you like, in the right finish, from the right brand. It still might not fit. Which shower trim kits fit your valve depends on the rough-in valve inside the wall, not the handle you can see. This page shows how to find your valve family, which clues each major brand relies on, and where to confirm the answer before you order.

The rule is simple: trim must match the valve behind the wall. Moen says its single-handle shower trims are not interchangeable across all Moen valves. It tells you to identify the valve by how the handle operates and where the escutcheon screws sit before choosing trim (Moen: Can I Replace My Shower Trim?). The other brands tie trim to a rough-in in their own documents, as the chart below shows.

So the brand name on the handle is only the first step. You need the brand, the rough-in platform, and the generation or function series, and sometimes the cartridge or an adapter. Visible style and finish prove none of that.

Method 1: Read the Visible Trim

Start with what you can see. Moen says most of its shower faucets have “Moen” written or engraved on the handle or the escutcheon trim plate (Moen: Tub and Shower Systems). Delta support indicates that series information may be printed on the escutcheon plate below the handle (Delta: RP74236 Q&A).

These marks help with the brand. They do not prove the trim is compatible. Treat them as a starting label.

If the trim has no markings, look for paperwork. According to Pfister, the model number is usually on the package and instruction manual, and on some products it may be under a handle or on a hot water line (Pfister: Parts & Support). Pfister’s page covers faucets in general, not shower trim only. According to Kohler, model numbers can appear on packaging, literature and specification sheets, and are sometimes stamped on the product (Kohler: Find a Service Part).

Method 2: Check How the Handle Works and What Is Behind It

The stronger clues sit behind the handle. For Moen, rotate-only operation points toward the Posi-Temp family and the 1222 cartridge. Push/pull operation points toward the standard or Moentrol family and the 1225 cartridge family (Moen: Shower Cartridges). Escutcheon screw location is the second Moen clue.

For Delta, we start with the cartridge family and generation, because Delta’s cartridge page sorts its tub/shower cartridges by series and by date. Delta’s cartridge page associates RP19804 with older 1300/1400 valves, and the RP19804 Q&A ties it to pre-2006 1300/1400 Monitor valves. It associates RP46074 with current 13/14 MultiChoice valves (Delta: Tub/Shower Cartridges, Delta: RP19804 Q&A).

For Kohler, our advice is to look past the decorative collection name. Kohler’s Rite-Temp trim specs list the compatible valve series in the technical documentation, such as K-304, K-2971, K-8300 and K-8304 (Kohler: Bancroft Rite-Temp spec, Kohler: K-TS130-4D spec). The spec sheet and product diagram are stronger evidence than the product’s style name.

Removing the escutcheon means working near the valve, so follow the manufacturer’s instructions for your valve and turn the water off first. Our Moen shower valve identification page and Delta shower valve identification page cover the cartridge side in detail.

Which Shower Trim Kits Fit Your Valve: The Brand Chart

Use this chart to narrow the field. It records what each manufacturer’s own documents tie trim to. It is not a compatibility list for your exact model: the trim’s spec sheet or parts diagram has the final word.

Brand	What the maker ties trim to	Cartridge or part clue	Watch for
Moen	Valve type: standard, Moentrol, Posi-Temp and M-CORE are distinct families, and trim must match the valve type	Rotate-only handle points to 1222 (Posi-Temp); push/pull points to the 1225 family	Single-handle trims are not interchangeable across all Moen valves
Delta	The R10000 MultiChoice rough valve accepts current Delta 13/14, 17 and 17T trim kits	RP46074 for current 13/14; RP46463 for 17 Series; RP47201 for 17T TempAssure; RP19804 for older 1300/1400	R10000 does not mean RP46074 for every trim; each function series has its own cartridge
Kohler	The valve series named on the trim’s spec sheet, such as K-304, K-2971, K-8300 or K-8304	Rite-Temp appears across several generations and valve bodies	Check the exact K-number and any adapter notes; “Rite-Temp” alone is not an answer
Pfister	Current R89 trim documents say the trim requires 0X8/JX8 rough valves	The 0X8/JX8 spec describes a pressure-balance valve with a metal stem and anti-scald cartridge	Avante pull-and-turn valves take their own cartridge, 974-2920, so confirm which valve you have before choosing R89 trim
American Standard	The R110 spec sheet lists trim kits (Colony, Fluent, Hampton, Town Square and others) for R110/R115/R117 rough valve bodies. Current Flash: TU trims on RU rough valves	The cartridge ships with the trim on current Flash	Old and current series are different generations, so check which you have

Sources for the chart: Moen trim guide, Moen shower cartridges, Delta MultiChoice, Delta cartridges, Kohler Bancroft spec, Pfister R89 spec, Pfister 0X8 spec, Pfister Avante 974-2920, American Standard R110 spec and American Standard Flash.

Edge cases the chart cannot show

According to Moen’s conversion guide, standard Moen valves may accept many newer Moentrol trims through the 145058 adapter kit, but only when the new trim has a 7-inch round escutcheon, and several collections are excluded (Moen: 145058 conversion). Moen’s M-CORE guide lists no escutcheon screws for its M-CORE trim and splits the single-handle M-CORE systems into 2-Series and 3-Series (Moen: M-CORE cartridge guide).

According to Kohler, Rite-Temp valves have deep rough-in kits, and one Kohler spec warns that incorrect long screws can damage a K-2971-KS valve (Kohler: deep rough-in guide, Kohler: Coralais spec). Older American Standard trim pages may also list R010/R015 rough valves, and some are discontinued (American Standard: Town Square). If a discontinued trim page shows a TU substitute, that does not show every old R-series rough valve accepts every TU trim. Check the platform and cartridge requirements first.

Why a Serial Number or House Age Will Not Settle It

You may expect a serial-number decoder. For shower trim there is not one. Neither of our research runs found a public homeowner-facing serial-number decoder for Moen, Delta, Kohler, Pfister or American Standard trim compatibility. The path that works is the model number, the valve and cartridge family, photos and parts diagrams, and manufacturer support.

Moen’s model-number help says exact model numbers are found on the box or instruction sheet, and that a series number is not the exact model number but helps when used with the Replacement Part Locator (Moen: model number FAQ). Moen’s finish chart also warns that a finish’s “Year Introduced” does not prove when that finish was used on a specific model number (Moen: Faucet Finishes).

In our reading, age is still a rough generation clue, mostly for Delta. That is our inference, not a manufacturer rule; it rests on the RP19804 versus RP46074 split above, where Delta’s cartridge page ties RP19804 to 1300/1400 valves from 04/2006 and earlier. House age can guide where you start looking. It does not prove compatibility.

One more note from Delta: RP19804 may have gone through revisions and look different from earlier versions while still being the correct replacement for the correct older valve generation (Delta: RP19804 Q&A). Do not reject a correct part only because it is not identical to the old one.

Use the Manufacturer’s Lookup Before You Order

Go to the maker’s own pages first. Delta’s “Find Parts and Identify Your Product” page accepts a model number and also has a step-by-step identifier that leads to model pages and parts diagrams (Delta: Find Parts). Kohler’s Service & Replacement Parts page points to parts diagrams and offers Kohler Scout photo identification (Kohler: Find a Service Part). Treat Scout as an aid and check its answer against the spec or parts diagram, as Scout is described in the research as beta.

Pfister’s Parts & Support page accepts a model number (Pfister: Parts & Support). Moen’s trim guide is its best shower-trim tool, because it maps handle operation, screw location and valve type to trim families. American Standard does not appear to have a single shower-trim wizard like Delta’s, so use its support pages, product pages, parts store and the rough-in spec sheets (American Standard: support, American Standard: parts store). Current Flash pages are stronger than older price-book copies for current RU/TU claims.

Our advice: once you hold a part number, retailer pages such as Home Depot or Lowe’s are fine for checking price and availability. They should not override the manufacturer’s compatibility page or spec sheet.

If You Still Cannot Tell Which Brand You Have

This is the “we bought the house” case. Document before you shop. Take photos of the full trim, the handle close-up, the escutcheon plate, the valve with the escutcheon off, and the cartridge, stem or retainer. That photo list is our own synthesis, not one manufacturer’s checklist, but it follows what the makers ask for. Pfister’s support form asks for close-up and wider photos when the model is unknown (Pfister: Ask a Question). Delta directs you to call or email if the model is not on its site (Delta: Replacement Parts FAQ).

Be careful with “universal” kits. Danco’s Moen trim kit is for specific Moen Moentrol and Posi-Temp cartridge-style faucets. Its Delta kit is for defined Delta families, such as 1300/1400, MultiChoice 13/14 and 600-series ball-style faucets (Danco: Moen 10001, Home Depot: Danco Delta 10004). “Universal” there means universal within a listed valve family, not across brands. A kit is not a cure for an unknown valve.

Some older valves get mistaken for common ones. Delta’s cartridge page lists 1600-series valves from 1974 to 1993 and Peerless B112900 and B114900 cartridges from 2010 to 2015 (Delta: Tub/Shower Cartridges). Rule these out before you order for a Monitor or MultiChoice.

If the rough-in cannot be identified, or the needed trim or cartridge is discontinued with no verified replacement, or the brass body is damaged, or you want a style the old rough-in cannot take, replacing the valve is the final path. This Old House documents shower-valve replacement as a normal repair (This Old House: shower valve repair). Trim alone cannot solve every valve mismatch, as Moen’s compatibility guidance shows.

When to Call a Plumber for the ID

Call a plumber when identification means disassembly that could leave the shower unusable, when the home has no local fixture shutoff stops, when the cartridge may break during extraction, or when the rough-in will decide whether a trim kit you have already bought fits. That matters most for Moen, which says it has made many types of shower rough-in valves and that the trim kits are not interchangeable (Moen: Can I Replace My Shower Trim?). It also matters for Delta, whose cartridge page lists several generations of tub/shower cartridges.

Do not assume one removal method fits every brand. Moen’s 1222 instructions cover the retainer clip and plastic twisting tool, flushing the valve body, the H/C tab orientation, and not turning the water back on if the retainer clip cannot be reinstalled (Moen: 1222 instructions). Delta’s instructions stress noting and restoring the rotational limit stop position and checking that cold water flows first (Delta: RP46074 installation PDF). Kohler warns that heat can damage internal Rite-Temp parts during soldering (Kohler: Rite-Temp dripping guide). Professional opinions vary on method, so follow the manufacturer’s procedure for your valve.

Service stops are not flow controls. Delta’s R10000 MultiChoice rough-in instructions say to install the stops on the with-stops version and set them to full open (Delta: R10000 rough-in instructions (PDF)).

What a visit costs depends on your market. Housecall Pro’s 2026 guide cites many residential service-call fees at about $75 to $150, while Angi’s 2026 guide gives $150 to $250 (Housecall Pro: pricing guide, Angi: plumber cost). Ask the company what the fee is and whether it is credited toward the repair.

What to Do Next

Find the valve family first, then the trim. For the wider picture, see our shower repair hub, then confirm your trim on the maker’s spec sheet or parts diagram before you order.

Sources

• Moen: Can I Replace My Shower Trim?
• Moen: Shower Cartridges
• Moen: Tub and Shower Systems
• Moen: How to Convert a Shower Trim with a 145058 Adapter Kit
• Moen: How to Identify Your M-CORE Cartridge
• Moen: How can I find my model number?
• Moen: Faucet Finishes
• Moen: 1222 Cartridge Instructions
• Delta: Tub/Shower Cartridges
• Delta: MultiChoice Universal Valve
• Delta: Find Parts and Identify Your Product
• Delta: RP74236 Q&A
• Delta: RP19804 Q&A
• Delta: R10000-UNWS Q&A
• Delta: R10000 MultiChoice Rough-In Instructions (PDF)
• Delta: Replacement Parts FAQ
• Delta: RP46074 Installation Instructions (PDF)
• Kohler: Bancroft Rite-Temp Trim Spec (PDF)
• Kohler: K-TS130-4D Spec (PDF)
• Kohler: Coralais Spec (PDF)
• Kohler: Deep Roughing-In Kits for Rite-Temp Valve Trim
• Kohler: Rite-Temp Valve Dripping from Showerhead or Spout
• Kohler: Find a Service Part
• Pfister: Parts & Support
• Pfister: Ask a Question
• Pfister: Pfirst Series R89 Spec (PDF)
• Pfister: 0X8/JX8 Valve Spec (PDF)
• Pfister: Avante Cartridge 974-2920
• American Standard: R110 Spec Sheet (PDF)
• American Standard: Flash
• American Standard: Town Square Valve-Only Trim Kit
• American Standard: Support
• American Standard: Parts Store
• Danco: Universal Tub/Shower Trim Kit for Moen
• Home Depot: Danco Delta Trim Kit 10004
• This Old House: How to Repair a Shower Valve
• Housecall Pro: How to Price Plumbing Jobs
• Angi: Plumber Cost

Educational content only. Not a substitute for licensed professional advice. Local plumbing codes vary by jurisdiction. Use of any guidance from this guide is at your own risk.

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