May 20 , 2026
Everpure H-104 Under-Sink Filter (EV9612-11): Installation and Replacement Guide for 2026
Everpure H-104 Under-Sink Filter (EV9612-11): Installation and Replacement Guide for 2026
The Everpure H-104 is the higher-capacity sibling to the H-300, designed for residential households with heavier filtered-water usage or for light-commercial setups like office break rooms, coffee shops, and small restaurants. If your H-300 is wearing out faster than you can replace it, the H-104 is the cartridge to step up to.
This guide covers the H-104's specifications, what it removes, how to install it, the maintenance schedule, and the differences between the H-104 and other Everpure cartridges so you can decide if it is the right choice for your setup.
What Is the Everpure H-104?
The Everpure H-104 is a point-of-use water filtration cartridge manufactured by Pentair. It uses Everpure's quick-change connection and fits the dedicated H-104 head assembly. Like the rest of the Everpure residential line, the H-104 is built for sediment, taste, and odor reduction with NSF certification.
The OEM part number is EV9612-11. You may also see it listed as "Pentair Everpure H-104" or "Everpure H 104" with various spacing.
Quick Specs
| Spec | Value |
|---|---|
| OEM part number | EV9612-11 |
| Capacity | 1,000 gallons |
| Flow rate | 0.5 gallons per minute |
| Micron rating | 0.5 micron nominal |
| Pressure range | 10 to 125 psi |
| Temperature range | 35 F to 100 F |
| Replacement interval | 6 months or 1,000 gallons |
| Connection | Twist-on quick-change |
| Certifications | NSF/ANSI 42 and 53 |
What the H-104 Removes
The H-104 carries the same NSF 42 and 53 certifications as the H-300, with the same contaminant reduction profile. The difference between the two cartridges is capacity, not capability.
The cartridge reduces:
- Chlorine taste and odor
- Particulates down to 0.5 micron (sand, sediment, rust flakes)
- Cysts including Cryptosporidium and Giardia
- Lead reduction per NSF/ANSI 53
- Mold, algae, and microscopic organic matter
The H-104 does not soften water. If your home has hard water, pair the H-104 with a separate softening solution or use a scale-reducing cartridge in series.
When to Use the H-104 Instead of the H-300
The H-104 is the right cartridge when:
- Daily filtered water usage exceeds 5 gallons. The H-300 is rated for 300 gallons over 6 months, which works out to about 1.6 gallons per day on average. Households that cook with filtered water, brew filtered coffee, and use the dispenser for drinking water often exceed this average. The H-104's 1,000-gallon capacity gives a comfortable margin.
- You operate a light-commercial setup. Coffee shops with single espresso machines, office break rooms with single water dispensers, and small restaurants with prep-area filtration are typical H-104 applications. The cartridge is rated for these uses.
- You want to extend time between cartridge changes. Even at residential volumes, the H-104 lasts longer on a per-cartridge basis because its higher capacity is built into the carbon block. The 6-month calendar still applies, but the gallon ceiling rarely matters.
- Your existing H-300 cartridges are exhausting before the 6-month mark. If you are seeing reduced flow or returning taste at the 4-month point on H-300 cartridges, the H-104 is the upgrade.
The H-300 remains the right cartridge for standard residential single-tap drinking water with average household usage.
How to Install the H-104
The H-104 uses Everpure's quick-change design. The full swap takes under five minutes. No tools required.
- Turn off the water supply to the H-104 head. Most installations have a dedicated shut-off valve on the cold line going into the head.
- Open the dedicated faucet that the filter feeds to release pressure in the cartridge.
- Rotate the old cartridge a quarter turn counter-clockwise. The cartridge will release from the head.
- Pull the old cartridge straight down and set it aside. Expect a small amount of water to drain. A towel under the head catches most of it.
- Take the new cartridge out of the packaging and remove the protective cap from the top. Inspect the O-ring for debris.
- Align the new cartridge with the head, push it up into position, and rotate clockwise a quarter turn until it stops.
- Open the water supply valve slowly. Watch for leaks at the head connection.
- Flush the new cartridge by running 2 to 3 gallons of water through the connected fixture. This clears any carbon fines and sets the carbon block. Discard this water.
- Write the install date on the cartridge body with a permanent marker. Six months from today is your next replacement date.
Total time: about four minutes once the new cartridge is in hand.
Compatible Systems
The H-104 cartridge fits any Everpure system head designed for the H-104. The head and cartridge are keyed specifically to each other, so the H-104 will not fit an H-300, H-1200, or any other Everpure or non-Everpure head.
Common H-104 applications:
- Higher-capacity residential point-of-use systems
- Light-commercial coffee and espresso setups
- Office break rooms with single dispensers
- Small foodservice prep-area filtration
- Multi-fixture residential installations sized for higher daily use
If you are unsure whether your system uses the H-104 or another Everpure cartridge, look at the cartridge currently installed and read the part number on the label.
How the H-104 Compares to Other Everpure Cartridges
For a side-by-side view of the Everpure residential cartridge lineup:
| Cartridge | OEM Number | Capacity | Best For |
|---|---|---|---|
| H-300 | EV9270-71 | 300 gal | Standard residential single-tap |
| H-104 | EV9612-11 | 1,000 gal | Higher-volume residential, light commercial |
| H-54 | EV9252-67 | 750 gal | Mid-volume residential with scale-reduction option |
| H-1200 | EV9282-00 | 1,500 gal | Whole-kitchen or multi-tap residential |
The H-104 is the right step up from the H-300 for higher-volume residential use. The H-1200 makes sense when filtering for multiple fixtures or a whole-kitchen install.
Aftermarket H-104 Cartridges
Pentair manufactures the genuine Everpure H-104 cartridge. Aftermarket alternatives exist but vary in NSF certification and O-ring fit quality. Before buying a non-OEM H-104:
- Verify NSF 42 and 53 certification on the aftermarket packaging
- Confirm O-ring dimensions match the H-104 head specification
- Check user reviews for leak reports and flow consistency
- Compare price. If the aftermarket cartridge is less than 30 percent below the genuine Everpure price, the OEM cartridge is usually the better choice
The aftermarket gamble on a $40 cartridge is not worth the time cost of dealing with a leak under your sink or replacing the cartridge twice. For the H-104, OEM is the default.
Where to Buy Authentic Everpure H-104 Cartridges
The genuine Pentair Everpure H-104 cartridge (EV9612-11) is available at Water Filters FAST with same-day shipping on weekday orders placed before 1pm CST. Orders over $75 ship free. Smaller orders ship for a flat $5.
We carry the H-104 as a single cartridge, in 2-packs, and in 3-packs for households or businesses that want to keep replacements on hand. Every cartridge is genuine Pentair manufacture, NSF-certified, and backed by our 30-day satisfaction guarantee.
If you are unsure whether the H-104 is the right cartridge for your system or whether you should be running an H-300 or H-1200 instead, our support team can help verify before you order. Call 855-789-FAST (855-789-3278) or email support@waterfiltersfast.com.
Frequently Asked Questions
How long does an Everpure H-104 last?
Six months or 1,000 gallons of filtered water, whichever comes first. The 1,000-gallon capacity is rarely the binding constraint in residential use, so most replacements happen at the 6-month calendar mark.
What is the OEM part number for the Everpure H-104?
EV9612-11. You may also see it listed as Pentair Everpure H-104 or Everpure EV9612-11.
Can I use an H-104 in an H-300 system?
No. The H-104 and H-300 use different head assemblies and the cartridge connections are not interchangeable. If you want to upgrade from an H-300 setup to an H-104, you need to replace the head assembly as well.
Does the H-104 remove fluoride?
No. The H-104 reduces chlorine taste and odor, particulates, cysts, and lead. Fluoride removal requires a reverse osmosis system.
Is the H-104 the same as the H-104S or H-104I?
The H-104 is the standard cartridge. The H-104S and H-104I are variants with slightly different scale-reduction and ice-machine-specific formulations. Verify the exact part number on your system's existing cartridge before ordering.
Can I install the H-104 myself?
Yes. The cartridge is a quick-change design that requires no tools. The full swap takes under five minutes.
Why does the H-104 cost more than the H-300?
The H-104's 1,000-gallon capacity requires a denser, larger carbon block than the H-300's 300-gallon capacity. The cost difference is roughly proportional to the capacity difference.
Ready to replace your H-104? Order the genuine Pentair Everpure H-104 cartridge (EV9612-11) with same-day shipping on weekday orders before 1pm CST. Free shipping over $75. Questions on compatibility, call 855-789-FAST.
