FourHome - Replacement Plumbing Repair Parts

Why FourHome

Matched to the OEM Part Number

Every FourHome part is listed against the OEM part numbers it replaces, with the dimensions and broach you need to confirm the match before you order. Fix the faucet you have, without paying the brand-name markup.

Brass

Machined Brass Parts

Most FourHome stems and cartridges are machined from brass. Each listing shows the material, length and broach so you can compare it against the part you pulled out.

NSF 372 · cUPC

Certified Where It Counts

Our listed sink and lavatory parts are certified lead-free to NSF/ANSI/CAN 372, and our pop-up drains carry the cUPC mark cast into the drain body. Each product listing states its certification.

Prime

Ships from Amazon

Parts ship from Amazon fulfillment centers, with Amazon delivery and returns. Contractors and property managers can get volume pricing through FourHome Pro.

Repair Guides & Industry Insights

CNC machine manufacturing brass faucet cartridge on precision assembly line

NEW - Buying Guide

How to Identify Which Faucet Cartridge or Stem You Need (Complete Cross-Brand Guide)

Don't order the wrong part. This guide covers every major brand - Moen, Delta, Kohler, Pfister, Gerber, Grohe, Glacier Bay and more - with part numbers, cartridge vs stem identification tips, and direct links to the right replacement.

Read the full guide

Cartridge stuck? Pliers, a flashlight and a brush on a towel on a bathtub ledge, ready for a shower cartridge job

NEW - Repair Guide

Stuck or Broken Shower Cartridge? How to Get It Out Without Wrecking the Valve

A cartridge that has sat in the valve for years can fight back, and pulling hard with pliers can snap it. Check the clip, twist before you pull, use the right puller, and what Moen says to do when the stem breaks off.

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Toilet flushed, shower stayed put? Single lever chrome shower handle on gray tile with the shower running

NEW - Repair Guide

What a Pressure-Balance Shower Cartridge Does, and How to Tell If You Have One

Many single-handle showers have a pressure-balance cartridge that reacts when a toilet flush or a washing machine pulls water away. How it works, what it cannot do, how it differs from thermostatic, and which cartridge your valve takes.

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One-handle faucet leaking? Start here: chrome single-handle faucet over a white sink with a drop falling from the spout

NEW - Repair Guide

Leaky Single-Handle Faucet? Find the Leak, Then Fix the Right Part

A drip from the spout, water around the handle and a puddle at the base point to different parts. Find where the water shows, see what is under the handle and replace the right part.

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Number worn off? Measure and match: chrome single-handle shower trim on white tile with digital calipers on the tub ledge

NEW - Repair Guide

What Size Shower Cartridge Do I Need? How to Measure and Match It

No number on the old shower cartridge? Five clues and four measurements identify it, and the lengths Delta and Pfister publish show why a ruler alone is not enough.

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Hot, then cold? Find the cause: running rain showerhead with warm steam on one side and cool light on the other

NEW - Repair Guide

Shower Temperature Swings Hot and Cold? Find the Cause

A shower that turns hot or cold when someone flushes has a balancer that is not doing its job, a valve that never had one, or a problem upstream at the water heater. Here is how to tell which, and the fix for each.

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Still dripping? Draining or a leak: chrome showerhead on white tile with a falling water drop after the shower is off

NEW - Repair Guide

Shower Drips After You Turn It Off? Find the Source First

A few drops right after you shut the shower off are normal. A drip that keeps going is a valve that is not sealing. Here is how to tell the two apart, find the worn part in a one, two or three handle shower, and fix it.

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Faucet still dripping? Check the seat: illustration of an older bathroom sink with a chrome two-handle faucet and water dripping from the spout

NEW - Install Guide

How to Replace a Faucet Seat (Bibb Seat) in a Compression Faucet

A two-handle compression faucet that drips however hard you turn the handle may need a new brass seat as well as a washer. Identify your seat by thread and height, pull it with a seat wrench and fit the new one.

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Handle just spins? Find the broken part. Chrome single lever shower handle on light gray tile

NEW - Repair Guide

Shower Handle Spins Freely? Find the Broken Part

A shower handle that spins without moving the water has lost its grip somewhere between your hand and the valve. Check the handle screw, the handle adapter and the stem, in that order, before you buy a part.

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Stopper not sealing? Replace it. White bathroom vanity sink with a chrome single lever faucet and a drop of water at the spout

NEW - Install Guide

How to Replace a Pop-Up Sink Stopper (Pivot Rod Drains)

A bathroom sink that will not hold water may need only a new stopper, not the whole drain. See how a pivot rod drain works, free the old stopper at the nut, fit the new one, set the lift and test the seal.

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Tub spout running while you shower? It is the diverter: chrome tub spout and showerhead both running at once over a white bathtub

NEW - Repair Guide

Water Coming Out of the Tub Spout While the Shower Is On? Fix the Diverter

Half the water is going down the drain before it reaches you. The diverter is not closing. Find out which of the three kinds you have, test it with a bucket, and replace the spout or the diverter stem in under an hour.

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New faucet Saturday? Check the box tonight: chrome widespread bathroom faucet running into a white sink on a stone vanity

NEW - Install Guide

Installing a New Faucet This Weekend? What the Box Leaves Out

A new faucet box may not hold the drain, the supply lines, the valve or the tools. Open it tonight, lay the parts out against the install sheet, and make six checks under the sink before Saturday morning.

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Sink backed up? Fix it before the feast: farmhouse kitchen sink with standing water and a cup plunger, potatoes and roasting pans on the counter

NEW - Seasonal Guide

Kitchen Sink Clogged Before Thanksgiving? Clear It Without Drain Cleaner

Thanksgiving week is when kitchen drains get the most grease and the most scraps. Plunge it, pull the P-trap, reset a jammed disposal and keep the grease in a can, all without chemical drain cleaner.

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Faucet still dripping? Fix it before the guests: chrome kitchen faucet over a farmhouse sink with a drop of water on the spout and a pie on the counter

NEW - Seasonal Guide

Kitchen Faucet Dripping? Fix It Before the Holiday Cooking Starts

The kitchen sink works harder in November and December than any other month. A faucet that drips with the handle off needs one part, not a new faucet. Single-handle Moen and two-handle Delta, step by step from their own pages.

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Shower still dripping? Swap the cartridge: chrome single-handle tub and shower trim with a drop of water on the tub spout

NEW - Install Guide

How to Replace a Delta Monitor 1300/1400 Cartridge (RP19804)

A Delta Monitor shower that will not stop dripping usually needs one part. The white cap check, the swap and the limit stop, step by step from Delta's own instruction sheets.

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Faucet dripping? Change the cartridge: chrome single-handle faucet over a white sink with a drop of water falling from the spout

NEW - Install Guide

Replacing a Glacier Bay 35 mm Ceramic Cartridge, Step by Step

A single-handle Glacier Bay faucet that drips or will not shut off usually needs a new ceramic cartridge. How to measure the old one, swap it at the sink and flush the lines.

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Sink draining slowly? Start at the stopper: white bathroom sink half full of soapy water draining slowly

NEW - Repair Guide

Bathroom Sink Draining Slowly? 5 Causes, Starting With the Stopper

A slow sink is rarely a problem in the wall. Most of the time the clog is hair on the stopper, within arm's reach. Five causes, easiest fix first.

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Shower not hot enough? It might just be winter: hand testing a lukewarm shower stream with a snowy window behind

NEW - Seasonal Guide

Shower Not Getting Hot Enough in Winter? 5 Causes and the Fix for Each

The shower was fine in August and lukewarm in December. Usually nothing broke. Here is what changes in winter and how to get the heat back.

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Before the freeze, before the guests: outdoor hose faucet with an insulated cover on a frosty brick wall, garden hose disconnected

NEW - Seasonal Guide

Before the Freeze, Before the Guests: Winterize Outdoor Faucets and Fix the Guest Bath Drip

One weekend, two jobs: drain and cover the outdoor faucets before the first hard freeze, then fix the guest shower before company arrives.

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NSF 372 lead-free explained: FourHome replacements for Moen 1225, Moen 1200, Delta RP1740 and Delta RP25513, certified to NSF/ANSI/CAN 372 by IAPMO R&T

NEW - Standards Guide

What Does NSF 372 Mean? Lead-Free Plumbing Certifications Explained

What NSF actually stands for, NSF 372 vs NSF 61, who IAPMO is, what a cUPC mark means, and which faucet parts have to be lead free.

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Delta cartridge or stem: RP46074 grey cap and RP19804 white cap single-handle tub and shower cartridges, RP1740 and RP25513 two-handle stems

NEW - Identification Guide

How to Identify Your Delta Faucet Cartridge or Stem

Grey cap or white cap, plastic stem or brass: the fast way to match the Delta part in your wall or under your sink before you order.

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Moen 1222 vs 1225 vs 1200 vs 1224 replacement cartridges side by side with how each handle works

NEW - Identification Guide

Moen 1222 vs 1225 vs 1200 vs 1224: Which Moen Cartridge Do You Have?

Posi-Temp, push-pull, brass or two-handle: tell the four most-confused Moen cartridges apart by the handle, the valve and the clip.

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Dripping chrome showerhead and single-handle shower valve with a replacement for Delta RP46074 cartridge

NEW - Shower Repair Guide

Delta Shower Faucet Dripping? The 20-Minute Fix (and the Exact Cartridge You Need)

A dripping Delta single-handle shower is almost always one worn cartridge. Learn which one you have - the grey-cap RP46074 vs the white-cap RP19804 - why the year your valve was made matters, and how to swap it yourself in 20 minutes. No tile work, no plumber.

Read the full guide

Replacement for Mixet MS-5AT and MS-5AT-C cartridge for post-1968 single-handle tub and shower valves

NEW - Shower Repair & Brand History

Mixet MS-5AT-C Cartridge Replacement: Brand History & Install Guide

Millions of mid-century American homes still have a Mixet single-handle tub and shower valve behind the wall. Here is the brand history, how to tell pre-1968 from post-1968, OEM cross-references for Danco 88200, BrassCraft SLD1350, and Prime-Line MP58045, and a 15-minute install walkthrough.

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Hands installing a brass faucet cartridge into a shower valve body through white tile

🔧Repair Guide

How to Replace a Moen 1200 or 1225 Cartridge in 15 Minutes

A dripping Moen single-handle faucet is one of the most common kitchen and bathroom repairs. The internal cartridge controls water flow and temperature, and swapping it takes about 15 minutes with basic tools.

Read full guide →

Chrome showerhead soaking in a bag of white vinegar to restore shower water pressure

🔧Repair Guide

How to Fix Low Water Pressure in Your Shower in 30 Minutes

Weak shower pressure is almost always a clogged showerhead or worn cartridge. 7-step diagnostic with the exact fixes, under $60 and under an hour.

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Chrome shower valve trim plate with showerhead and brass valve body for cartridge replacement

⚠️Troubleshooting

5 Signs Your Shower Cartridge Needs Replacing (And Which Part to Buy)

Shower cartridges degrade slowly over months or years. By the time you notice symptoms, the cartridge has been failing for a while. Here are the five warning signs and what to do about each one.

Read full guide →

AI robot plumber with wrench repairing pipes under a bathroom sink

🤖AI & Plumbing

How AI is Reshaping the Plumbing Repair Parts Industry in 2026

The plumbing supply chain hasn't fundamentally changed in 40 years. AI is compressing what would have been a decade of evolution into the next 24 months. From predictive maintenance to visual part identification.

Read full article →

🔧Repair Guide

The Complete Guide to Bathroom Sink Pop-Up Drain Assemblies

How to choose between brass and plastic, install a new assembly in 15 minutes, fix the 5 most common drain problems, and find the right replacement for your bathroom sink.

Read full guide →

Plumber pulling out an old mineral-caked Moen 1222 Posi-Temp shower cartridge from a tiled shower valve

NEW - Shower Repair Guide

How to Replace a Moen 1222 Posi-Temp Shower Cartridge in 20 Minutes

The single most replaced shower part in American bathrooms. No tile work. No plumber. Step-by-step with the puller tool that saves the job - plus the OEM-compatible replacement that fits every post-2009 Moen single-handle shower.

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Moen 1200, 1222, 1225, and 1224 cartridges side-by-side with labels showing what each one fits

NEW - Buying Guide

The Complete Guide to Moen Faucet Repair Parts (Every Cartridge Explained)

Moen is in 40% of U.S. homes built since 1990 and has shipped more than a dozen different cartridges since the 1960s. This guide walks through every major Moen cartridge - 1200, 1222, 1225, 1225B, 1224, 1204 - with what each fits, how to ID yours, and the right replacement.

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Tub spout dripping? Change the stem: illustration of an older beige tiled tub and shower wall with three chrome cross handles and a drop of water on the spout

UPDATED - Install Guide

Sayco 308 and T-308 Shower Stem Replacement: Which Stem, and How to Change It

A three-handle tub and shower that drips at the spout can usually be fixed by replacing a stem. Tell hot, cold and diverter apart, shut off the water, take the old stem out and fit the new one.

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Sea of finished brass faucet cartridge components representing the volume manufacturing scale behind FourHome OEM-compatible plumbing repair parts

NEW - For Property Managers

The Property Manager's Guide to Bulk Plumbing Parts (Real Cost Savings)

Plumbing parts are the most frequent maintenance call in any multifamily portfolio. The real cost math on what to stock, volume pricing, and how OEM-compatible replacements save $3,000 to $5,000 a year on a 100-unit property.

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OEM-Compatible Replacement Plumbing Parts

All Products

Matched to the OEM Part Number

Machined Brass Parts

Certified Where It Counts

Ships from Amazon

Replacements By Brand

Replacements for Moen

Replacements for Delta

Replacements for Kohler

Replacements for Pfister

Replacements for Gerber

Replacements for Grohe

Shop by Application

Sink

Shower

Tub

Shop by Category

Cartridges

Stems

Bibb Seats

Drain Assemblies

Tools

Repair Guides & Industry Insights

How to Identify Which Faucet Cartridge or Stem You Need (Complete Cross-Brand Guide)

Stuck or Broken Shower Cartridge? How to Get It Out Without Wrecking the Valve

What a Pressure-Balance Shower Cartridge Does, and How to Tell If You Have One

Leaky Single-Handle Faucet? Find the Leak, Then Fix the Right Part

What Size Shower Cartridge Do I Need? How to Measure and Match It

Shower Temperature Swings Hot and Cold? Find the Cause

Shower Drips After You Turn It Off? Find the Source First

How to Replace a Faucet Seat (Bibb Seat) in a Compression Faucet

Shower Handle Spins Freely? Find the Broken Part

How to Replace a Pop-Up Sink Stopper (Pivot Rod Drains)

Water Coming Out of the Tub Spout While the Shower Is On? Fix the Diverter

Installing a New Faucet This Weekend? What the Box Leaves Out

Kitchen Sink Clogged Before Thanksgiving? Clear It Without Drain Cleaner

Kitchen Faucet Dripping? Fix It Before the Holiday Cooking Starts

How to Replace a Delta Monitor 1300/1400 Cartridge (RP19804)

Replacing a Glacier Bay 35 mm Ceramic Cartridge, Step by Step

Bathroom Sink Draining Slowly? 5 Causes, Starting With the Stopper

Shower Not Getting Hot Enough in Winter? 5 Causes and the Fix for Each

Before the Freeze, Before the Guests: Winterize Outdoor Faucets and Fix the Guest Bath Drip

What Does NSF 372 Mean? Lead-Free Plumbing Certifications Explained

How to Identify Your Delta Faucet Cartridge or Stem

Moen 1222 vs 1225 vs 1200 vs 1224: Which Moen Cartridge Do You Have?

Delta Shower Faucet Dripping? The 20-Minute Fix (and the Exact Cartridge You Need)

Mixet MS-5AT-C Cartridge Replacement: Brand History & Install Guide

How to Replace a Moen 1200 or 1225 Cartridge in 15 Minutes

How to Fix Low Water Pressure in Your Shower in 30 Minutes

5 Signs Your Shower Cartridge Needs Replacing (And Which Part to Buy)

How AI is Reshaping the Plumbing Repair Parts Industry in 2026

The Complete Guide to Bathroom Sink Pop-Up Drain Assemblies

How to Replace a Moen 1222 Posi-Temp Shower Cartridge in 20 Minutes

The Complete Guide to Moen Faucet Repair Parts (Every Cartridge Explained)

Sayco 308 and T-308 Shower Stem Replacement: Which Stem, and How to Change It

The Property Manager's Guide to Bulk Plumbing Parts (Real Cost Savings)