Cartridges & more
Replacement Cartridges
Your water softener works hard to protect your home, but it's only as effective as the cartridge inside. Replacing it on time keeps your water clean, your system running strong, and scale buildup at bay.
With Autoship, you'll always have a fresh cartridge when you need it, delivered every 3 or 6 months. Update your schedule anytime, and never worry about running out of clean, healthy water!
Shop all cartridges by system
Showing 4 of 11
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Trio
Manor Trio cartridge and filters
Softening cartridge plus two filters. Pick your pair of iron, sediment, carbon or chloramine.
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No cartridges match this filter.
Find the Right Replacement Cartridge for Your System
Clean, healthy water just got easier. Just pick your system, choose your compatible cartridge, and select Autoship at checkout to save even more!
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Choose Your System
Click on your NuvoH2O system below.
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Choose Your Replacement Cartridge
We'll show you only the cartridges that fit your system.
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Opt into Autoship
Save 10% and get free shipping on every future order.
Step 1 — Your system
Step 2 — Your cartridge
Three stages ship as one shipment.
Cartridge plus the filter you pick.
Step 3 — Your schedule
Your Auto-Ship
Whole Home Trio
- Cartridge
- Delivered
- Next shipment after this one
- Price per shipment
- Shipping
- Free, U.S. addresses
Pause, reschedule, or cancel any time from your account. No contracts, no hidden fees.
Which filter is best for you?
Choosing the right replacement cartridge is important for keeping your water clean and your system working properly. Here's a quick breakdown:
| Filter | What it handles | Best for | Fits |
|---|---|---|---|
Softening cartridge
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CitraCharge™ keeps hardness minerals suspended so scale never forms on pipes, fixtures, or heating elements. | Hard water | Every system |
Sediment filter
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Catches dirt, sand, silt, and rust particles before they reach your fixtures and appliances. | Cloudy or well water | Duo, Trio, RV |
Carbon taste filter
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Reduces chlorine taste and odor along with other compounds that affect how your water tastes. | Chlorinated city water | Duo, Trio, Home Duo |
Chloramine filter
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Targets chloramine, the longer-lasting disinfectant many municipalities use instead of chlorine. | Chloramine-treated supply | Duo, Trio |
Iron and heavy metals filter
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Reduces dissolved iron that leaves orange staining in sinks, tubs, and laundry. | Staining or metallic taste | Duo, Trio, RV |
If you still need some pointers, contact our support team, and we'll help you find the right fit!