SpringWell, Aquasana, Kind and SoftPro whole house water filter systems compared by certification, flow and 5-year cost, including one PFAS-certified pick.
Our product recommendations come from independent research based on certifications, maker specs and published test data. If we’ve tested a product hands-on, the review says so. Some links are affiliate links; if you buy, we may earn a commission at no cost to you. Read our affiliate disclaimer here.
- Media rated for 1 million gallons (SpringWell)
- 9 to 20 GPM; no electricity

The short answer: For most homes on city water, our top pick is the SpringWell CF (~$1,160): the CF1 costs about $1,371 over five years, publishes its flow rate and comes in three sizes up to 20 GPM. It is a carbon tank that SpringWell says reduces chlorine, chloramine and PFAS, but no certifier lists it. If you want a whole-house filter certified to reduce PFAS, choose the Aquasana HealthShield (~$2,099). For the lowest upfront price and a DIY install, choose the Kind E-1000 (~$976), though its filters make it cost more than the SpringWell over five years. On a private well, see our well-water pick, the SpringWell WS, or our well water guide.
Before you buy: A whole-house water filter is a point-of-entry system: it treats water where the main line enters your home, so every tap gets filtered water. Many use catalytic carbon, a treated activated carbon that makers say handles chloramine better than standard carbon. Check what is in your water first. Your utility's annual water quality report is a good start (EPA), or test your water.
| Filter | Best for | Certified to reduce | Flow | Price | 5-year cost | Check price |
|---|---|---|---|---|---|---|
| SpringWell CF | Best value, city water | Not certified | 9 to 20 GPM | ~$1,160 | ~$1,371 | SpringWell |
| Aquasana HealthShield | Certified PFAS reduction | 5 PFAS and VOCs (WQA) | 5.7 GPM | ~$2,099 | ~$7,211 | Aquasana |
| Kind E-1000 | DIY install | Not certified | 15 GPM | ~$976 | ~$2,529 | Kind |
| SoftPro Chlorine+ | Budget carbon tank | Not certified | Not published | ~$1,097 | ~$1,097 + cartridges | SoftPro |
Prices were checked on each maker's site on October 5, 2026, for the smallest size, and change often. Five-year cost spreads replacement filters and tanks evenly over five years at each maker's shortest stated interval. It leaves out the SpringWell and SoftPro carbon media, which their makers rate for 5 to 10 years, and SoftPro's sediment cartridges, which SoftPro does not price. Counting whole purchases instead, the HealthShield's five-year cost is about $6,337.
Is Any Whole-House Filter Certified?
Few are. These are the whole-house units we checked that hold an NSF/ANSI 53 health-effects listing on October 5, 2026. A few others, such as Culligan's Aquasential Advantage, are certified to NSF/ANSI 42 for chlorine only. It is not a full list, so check the listing for your model:
- Aquasana HealthShield: WQA certifies it to NSF/ANSI 53 for PFOA, PFOS, PFHxS, PFNA, PFHpA and VOCs, at 5.7 GPM (WQA listing).
- Culligan Aquasential Whole Home PFAS: WQA certifies it to NSF/ANSI 53 for Total PFAS, at 7.5 GPM (WQA listing). It is sold through Culligan dealers.
- PIONEER DROP FC-40P: IAPMO certifies this cartridge system to NSF/ANSI 53 for lead, cysts and PFOA/PFOS, at 4.51 GPM (IAPMO listing). It costs about $3,884, plus the $443 DROP Hub that DROP says all its products need to work.
No whole-house system in our search held an NSF/ANSI 42 listing for chloramine, so the chloramine claims on this page, including Aquasana's, are the makers' own.
How We Chose These Filters
Our methodology rests on evidence anyone can check:
- Certification. We searched NSF, IAPMO and WQA for every pick and say plainly whether each one is listed. Maker claims are labeled as such.
- Running cost. We added up five years of replacement filters and tanks at each maker's price and shortest stated interval, spread evenly by year.
- Fit for city water. This guide covers treated city water. Well water needs different treatment, which our well-water guide covers.
These are research-based picks. We did not test them ourselves. We fact-checked every certification, price and link on this page on October 5, 2026. If you spot an error, please contact us. To learn who we are, read more about us.

Upfront price plus five years of replacement filters and tanks, at each maker's price and shortest stated interval, spread evenly by year, October 2026.
Running costs vary more than prices. SoftPro says its carbon lasts 5 to 10 years, though its sediment cartridge needs a swap about every three months. The HealthShield needs a new $1,749 tank about every two years, so it costs about $1,000 a year to run (Aquasana).
The 4 Best Whole-House Water Filters for City Water
1. SpringWell CF: Best Value for City Water

The SpringWell CF is an upflow tank of KDF media and catalytic carbon, with a 5-micron sediment filter after the tank. KDF is a copper-zinc media that SpringWell uses for chlorine and heavy metals. SpringWell says it reduces chlorine, chloramine and PFAS, including PFOA and PFOS, in city water. No certifier lists it, so treat those as maker claims. It comes in three sizes:
- CF1: 1 to 3 bathrooms, 9 GPM, ~$1,160
- CF4: 4 to 6 bathrooms, 12 GPM, ~$1,294
- CF+: 7 or more bathrooms, 20 GPM, ~$2,142
SpringWell rates the media for 1 million gallons. Its product page says up to 10 years, while its manual and carbon guarantee say 6. The sediment filter needs changing every 6 to 9 months, about $21 each. It needs no electricity. SpringWell gives a lifetime warranty on tanks, valves and housings.
Pros: long media life; high flow in the larger sizes; low yearly upkeep.
Cons: not certified; the bypass valve costs extra; it does not soften hard water. Its manual says not to install it on well water without calling SpringWell first.
Is it for you? Choose it for a city-water home that wants long-lasting media and low upkeep, and accepts maker claims.
2. Aquasana HealthShield: Best Certified for PFAS
The Aquasana HealthShield is the only pick here with a reduction certification. WQA certifies it to NSF/ANSI 53 for five PFAS (PFOA, PFOS, PFHxS, PFNA and PFHpA) and VOCs, and to NSF/ANSI 401 for BPA and ibuprofen (WQA 53 and 401 listings). Aquasana says its own tests show it reduces up to 97.49% of chlorine and chloramine (Aquasana). NSF/ANSI 53 is the standard for health-related claims, such as PFAS and lead.
- Price: ~$2,099
- Flow: 5.7 GPM rated
- Capacity: 165,000 gallons or about two years, then a new tank (~$1,749)
- Filters: a pre-filter every 2 months and a post-filter every 6 months
- Warranty: 2-year limited, plus a 90-day guarantee
Pros: certified PFAS reduction for the whole house; single tank.
Cons: the highest running cost of the four picks, about $1,000 a year; lower flow than the SpringWell and Kind; short warranty.
Is it for you? Choose it if your water report shows PFAS and you want certified reduction at every tap. Its listing applies at its 5.7 GPM rated flow, so it suits homes whose peak use stays near that rate.
3. Kind E-1000: Best for a DIY Install
The Kind E-1000 is a wall-mounted, two-stage cartridge filter: a 20-inch 5-micron sediment filter, then a 20-inch catalytic carbon block. Kind says it reduces chlorine, chloramine, VOCs and pesticides. Kind's page cites NSF/ANSI 42, 61 and 372 and describes its 42 certification as material safety and structural integrity; no certifier lists the E-1000 for reduction.
- Price: ~$976
- Flow: 15 GPM, for 1 to 5 bathrooms
- Filters: both every 6 to 12 months, $155.28 a set
- Install: Kind says 2 to 4 hours for most DIYers
- Warranty: lifetime, plus a 120-day satisfaction guarantee
Pros: the lowest upfront price of the four picks; high flow; compact; DIY-friendly.
Cons: filter changes every 6 to 12 months; not certified; for city water only, since Kind's manual allows no iron or hydrogen sulfide.
Is it for you? Choose it if you want to install it yourself and don't mind changing cartridges. For scale control too, Kind's E-3000 (~$2,094) adds a salt-free conditioning stage that Kind says prevents 88% of scale, with no published test (Kind E-3000).
4. SoftPro Chlorine+: Budget Carbon Tank
The SoftPro Chlorine+ is a single upflow tank of catalytic carbon in one size, for 1 to 6 bathrooms. SoftPro says it reduces chlorine, chloramine, PFAS, heavy metals and pesticides. No certifier lists it.
- Price: ~$1,097
- Capacity: 600,000 to 1 million gallons; SoftPro says the media lasts 5 to 10 years
- Upkeep: SoftPro's product page says the Chlorine+ runs a Big Blue sediment pre-filter whose cartridge needs a swap about every three months, but SoftPro's what's-included list shows no sediment housing, so ask SoftPro whether one ships with the unit. SoftPro publishes no cartridge price. No electricity and no wastewater.
- Warranty: lifetime limited
Pros: a lower upfront price than the SpringWell; long-lasting carbon; no electricity.
Cons: SoftPro publishes no flow rate or cartridge price; not certified; one size only.
Is it for you? Choose it for city water if you want a single carbon tank at a slightly lower upfront price than the SpringWell and don't mind a sediment cartridge swap about every three months.
Add a Sediment Pre-Filter?
If your water carries particles, such as sand, silt or rust, a sediment filter in front of a carbon system protects it. The RKIN CBS 5-micron filter (~$360) uses a 4.5 by 20 inch cartridge, and RKIN rates the unit for up to 20 GPM. RKIN says to replace the cartridge every 12 months, about $38 (RKIN). It removes particles only, not chemicals.
For coarse grit, such as sand from a well, the SpringWell spin-down filter (~$110) uses a reusable 90-micron screen that you flush clean through a valve instead of replacing. SpringWell rates it for up to 26.4 GPM with 1-inch connections and gives it a lifetime warranty (SpringWell spin-down). At 90 microns it catches larger particles than a 5-micron cartridge like the RKIN's.
On a Private Well?
Well water often needs iron, manganese or sulfur removal, which carbon filters don't handle well. Test first: SpringWell holds every well-system order until a lab water test ($134.25) is done, and says neither the CF nor the WS is for water that is microbiologically unsafe.
Best for Well Water: SpringWell WS
The SpringWell WS is an air-injection oxidation iron filter. It oxidizes dissolved iron, manganese and hydrogen sulfide so the media can trap them, then backwashes them to a drain, with no chemicals. SpringWell rates it for up to 7 ppm iron, 8 ppm hydrogen sulfide and 1 ppm manganese, for water with a pH of 6.5 to 10.
- WS1: 1 to 4 bathrooms, 12 GPM, ~$2,231 plus the required $134.25 water test
- WS4: 4 or more bathrooms, 20 GPM
- Install: needs a drain line and power for the control head (both supplied); the bypass valve is a $58.79 add-on
- Warranty: lifetime against defects, plus a 6-month money-back guarantee
Pros: treats iron, manganese and sulfur smell without chemicals; high flow; SpringWell says the media lasts 10+ years.
Cons: not certified; needs a drain and power; the water test adds to the price; not for acidic water below pH 6.5.
Hard water too? SpringWell pairs the WS with a salt-based softener (from about $3,124) or a salt-free conditioner (from about $3,213), which costs less than buying the two separately (salt-based combo, salt-free combo).
Acidic water? If your test shows a pH of 6 to 6.5, SpringWell's calcite pH neutralizer (~$1,814 plus the water test) is built for that range, at up to 12 GPM. SpringWell says it reduces copper and lead leaching from pipes (SpringWell calcite).
SpringWell prices were checked on its site on November 9, 2026. For more well systems, see our best whole house water filters for well water guide.
PFAS and Microplastics
PFAS are common: a 2023 USGS study estimated that at least 45% of U.S. tap water has one or more types (USGS). EPA set limits of 4.0 parts per trillion each for PFOA and PFOS in 2024. In May 2026, EPA proposed keeping those two limits, with a possible compliance extension to 2031, and rescinding the limits for PFHxS, PFNA, HFPO-DA (GenX) and the Hazard Index for PFAS mixtures (EPA). Look for NSF/ANSI 53 listings for PFOA/PFOS or Total PFAS. The older NSF P473 protocol has been retired into NSF/ANSI 53 and 58.
Microplastics fall under NSF/ANSI 401. Some carbon-block drinking-water filters are certified for it, but none of the whole-house picks here holds a microplastics listing. See our guide to water filters for microplastics.
Frequently Asked Questions
What are the disadvantages of a whole-house water filter?
Upfront cost, installation that cuts into your main line, and ongoing filter costs. For example, the HealthShield needs a new tank about every two years. Carbon filters do not soften hard water or disinfect water. Most whole-house filters are not certified, so you rely on maker claims.
Do I need a whole-house filter and a water softener?
Only if you have both problems. A carbon filter handles chlorine and taste; a softener removes hardness. See our best water softeners guide. For scale control without salt, see our salt-free softener guide.
Will a whole-house filter remove lead?
None of these four is certified for lead. One whole-house unit in our search, the PIONEER DROP FC-40P, is IAPMO-certified to NSF/ANSI 53 for lead at 4.51 GPM, but it costs about $4,327 with the required DROP Hub. For most homes, a cheaper fix is a drinking-water filter certified to NSF/ANSI 53 or 58 for lead at the kitchen tap. See our best under-sink water filters guide.
How much does it cost to install a whole-house water filter?
It depends on your plumbing. Angi lists plumber rates of $45 to $200 an hour and four to eight hours or more for whole-house installs (Angi). Kind says most DIYers install the E-1000 in 2 to 4 hours.
Is there a Kind Water Systems coupon?
Kind's E-1000 manual offers a discount on autoship replacement cartridges. Check Kind's site for current deals.
Key Takeaways
- Best value for city water: SpringWell CF (~$1,160), with maker-claimed chlorine, chloramine and PFAS reduction.
- Best certified: Aquasana HealthShield (~$2,099), WQA-certified for five PFAS, but about $1,000 a year to run.
- Best DIY: Kind E-1000 (~$976), a cartridge system for city water.
- Budget carbon tank: SoftPro Chlorine+ (~$1,097), plus a sediment cartridge about every three months, per SoftPro's product page; not certified.
- Few whole-house filters are certified, so check the listing before you trust a claim.
- On a well, test your water first. The SpringWell WS treats iron, manganese and sulfur; our well-water guide compares more options.
Want filtered water at one tap instead? See our guides to the best under-sink water filters and the best activated carbon water filters, or our overview of home water filtration systems.
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