The Everpure EV927071 is a 6-pack of genuine replacement cartridges for the Everpure H-300 drinking water system, giving you enough stock on hand for several years of cartridge changes without reordering each time.
The H-300 brings the same Micro-Pure filtration technology used in commercial and restaurant settings into a compact under-sink unit for home use, connected to its own dedicated drinking water faucet.
Below, you'll find out how to confirm you're installing the right cartridge for your system, a full walkthrough of the replacement itself, and what to check if something doesn't seem right afterward.
Why & When You Should Replace the Filter
The EV927071 cartridge uses Everpure's Micro-Pure precoat filtration with a pleated membrane to reduce chlorine taste & odor, lead, cysts, VOCs (including THMs), and particulates down to 0.5 microns — the claims covered under its NSF/ANSI 42 & 53 certification. Like any filter media, that capacity is finite: water keeps flowing normally once it's used up, but the filtration behind it quietly drops off.
Per Everpure's own specifications, the cartridge should be replaced annually or at 300 gallons (1,135 L) of rated capacity, whichever comes first. Practical signs it's time:
- You've hit the 300-gallon mark
- It's been roughly a year since the last change
- Water flow at the dedicated drinking faucet has slowed noticeably
- Chlorine taste or smell has started coming back
For most households, one of these lines up close to the one-year mark on its own. Two things can shorten that window:
- Heavier household usage — larger households or high daily draw run through the 300-gallon capacity faster than a calendar alone would suggest
- Poorer incoming water quality — more sediment, chlorine, or hardness shortens the cartridge's effective lifespan
⚠️ Note: The 300-gallon / annual replacement guidance comes directly from Everpure's official spec sheet. The usage and water-quality factors above reflect general industry practice, not manufacturer-published data.
Everpure EV927071 Specifications
The Everpure EV927071 is a 6-pack of the quick-change cartridge built for the H-300 under-sink drinking water system. It's certified under NSF/ANSI 42 for chlorine taste & odor and particulate reduction, and under NSF/ANSI 53 for health-effects claims including lead and cyst reduction — with particle reduction down to 0.5 microns by mechanical means.
Prepare Your Replacement: Compatibility, Materials & Safety
Verify Filter & System Compatibility
The EV927071 cartridge is built for the Everpure H-300 QL3 filter head (system model EV927076), mounted under the kitchen sink. It's the head, not the cartridge alone, that determines fit — so confirm the model printed on the head before ordering. Everpure also makes similarly-named systems like the H-300-NXT and H-300-HSD, but each uses its own cartridge (EV927441 and EV927075, respectively) that won't seat correctly in a standard H-300 head.
🔍 Not sure which system you have? Check the model printed directly on the filter head under the sink, or cross-reference it against the EV927071 product page here on BottleFillingStations.com. The clearest confirmation is physical fit — the cartridge lug needs to line up with the label on the head in order to lock in.
🧰 Materials Needed
⚠️ Safety Precautions
⚠️ Note: The tools list above matches the manual's "Tools Needed For Installation" section exactly (5 items). Plumber's tape (EV312119) is listed separately in the manual under "Installation Parts," not as a tool — it's used when mounting the elbow fittings on a new system install, and isn't needed for a straightforward cartridge swap on an existing H-300 unit.
Step-by-Step Replacement Guide
⚠️ Note: Steps above follow Everpure's H-Series Installation and Operation Manual (Section 6, steps Q–Y). The manual's step-by-step instructions specify a 5-minute flush.
Signs Your New Filter Is Not Installed Correctly
If something feels off after a replacement, run through these common installation issues first:
- Leaking at the head or elbow fittings — usually means the cartridge lug isn't fully aligned or seated. Pull it back out, realign the lug with the head label, reinsert, and turn a full 1/4 turn clockwise until it locks.
- Low or no water flow — check that the shut-off valve handle on the head is fully lowered, and that the cold water angle stop valve is fully reopened.
- Cartridge won't turn fully into the locked position — this is the 1/4-turn stop described in the Step-by-Step guide above. If it stops short of that point, the lug likely isn't aligned with the label on the head, or the cartridge wasn't pushed all the way up before turning.
⚠️ Note: These are general troubleshooting patterns based on standard H-300 installation behavior described in the manual, not official manufacturer fault codes.
What to Expect After Installing the New Filter
Give the new EV927071 cartridge its full 5-minute flush (covered in the Step-by-Step guide above) before judging performance. Here's what's normal during and right after that window:
- Air bubbles & sputtering — trapped air working its way out as the initial flush runs.
- Cloudy water — harmless loose carbon fines from the new cartridge, cleared by the flush.
- Flow returns to normal — once flushing is done, the drinking faucet should be back to its rated 0.5 gpm.
- Taste and odor improve — any leftover chlorine taste from the old cartridge should fade within the first few uses post-flush.
If cloudiness is still present after a week, or if flow or taste doesn't improve as described, contact Pentair Customer Service at 1-800-279-9404.
If cloudiness, sputtering, or weak flow is still happening well past the flush, also double-check that the cartridge is turned fully into its locked position and that the cold water angle stop valve is completely open — see the Signs Your New Filter Is Not Installed Correctly section above.
Official Installation Reference
These steps follow Everpure's official H-Series Installation and Operation Manual, which covers the H-54, H-104, H-300, H-300-HSD, H-300-NXT, and H-1200 systems (English/Spanish/French). Basic installation instructions run pages 4–6 of the English section; the cartridge install and flush steps specifically are on page 6.
Maintenance Tips for Longer Filter Life
A handful of simple habits keep every EV927071 cartridge performing at its certified level for its full lifespan:
- Replace on schedule — annually or at 300 gallons, whichever comes first. See the Why & When section above for the full replacement guidance.
- Don't run unsafe or unknown-quality water through the system without disinfection — the H-300 is certified for cyst reduction on already-disinfected water, not as a standalone treatment for microbiologically unsafe water.
- Avoid crimped or kinked tubing — sharp bends in the supply or outlet lines restrict flow and put unnecessary strain on the fittings over time.
- Stay within the rated operating range — 35–100°F cold water at 10–125 psi; running outside that range can shorten cartridge life or reduce filtration performance.
Where to Buy Genuine Everpure EV927071
Everpure recommends authentic EV927071 cartridges to ensure a proper fit in the H-300 head and valid NSF/ANSI 42 & 53 certification. Off-brand or "compatible" aftermarket cartridges aren't manufactured or certified by Everpure, so a genuine cartridge is the surest way to keep the fit and certification this system was designed around.
To help ensure performance, purchase the Everpure EV927071 6-Pack from a trusted, verified source. If you'd rather save while still getting an authentic cartridge, we also offer an open-box EV927071 option — per our own listing, the cartridges themselves are unused and covered by the manufacturer warranty, with only the outer packaging or canister showing light cosmetic wear.
Troubleshooting & FAQ
The new EV927071 cartridge is leaking — what's wrong?
The cartridge lug likely isn't fully aligned or seated. Remove it, realign the lug with the head label, reinsert fully, and turn a full 1/4 turn clockwise until it locks into place.
The old cartridge is hard to remove.
Confirm the cold water angle stop valve is closed and the shut-off valve handle on the head is lifted to relieve line pressure. Then turn the cartridge a firm 1/4 turn counterclockwise to release it from the head.
Flow is slow after replacing the EV927071 cartridge.
This usually means the cartridge isn't turned fully into its locked position, or the cold water angle stop valve isn't fully open. Run the full 5-minute flush (see the Step-by-Step Replacement Guide above) and recheck both.
How do I confirm I'm buying the right cartridge for my H-300 unit?
Check the model printed directly on the filter head under your sink. The EV927071 (and its single-pack equivalent, EV927072) is built for the standard H-300 head — it's not interchangeable with the H-300-NXT (EV927441) or H-300-HSD (EV927075), despite the similar naming. See the Prepare Your Replacement section above for how to verify by physical fit.
How often should I replace the Everpure EV927071?
At 300 gallons or annually, whichever comes first. See the Why & When section above for the full replacement schedule.
Related Products
Complete your H-300 setup or find the right pack size with these compatible options:
The complete under-sink filter head and system that the EV927071 cartridge installs into — for a new setup or a full system replacement.
View Product →The same genuine cartridge sold individually — a good fit if you just need one replacement rather than the full 6-pack.
View Product →The same genuine 6-pack at a lower price — packaging may show light wear, but the cartridges themselves are unused and fully covered by the manufacturer warranty.
View Product →Conclusion
Replacing the Everpure EV927071 H-300 Cartridge is a quick, straightforward task — six steps, a few minutes, and no tools needed for the swap itself.
Stick to the schedule covered above, log every cartridge change, and keep a spare EV927071 cartridge on hand from your 6-pack so you're always ready for the next swap. It's a simple way to keep your household's drinking water tasting clean and protected against the contaminants this system is built to reduce.