SpringWell
SpringWell CF+ Whole House Filter Review (2026)
7+ bathroom / large homes
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Type
Whole-house carbon filter
Flow rate
20
Warranty
Lifetime
Maintenance
~$40/yr
Price tier
$$$ (high)
Best for
7+ bathroom / large homes
Key specifications
High-flow large-home media bed.
Our take
The SpringWell CF+ Whole House Filter is a strong fit for 7+ bathroom / large homes. As with any whole-house treatment decision, the right choice depends on your incoming water (hardness, chlorine vs. chloramine, any flagged contaminants) and the size of your home. If you haven't already, check your local water-quality data before committing.
What problem does it solve?
Heavy-duty version of the CF carbon platform with extra media volume and a higher service flow, so chlorine, chloramine and organic compounds are removed without pressure drop in big estates or homes with simultaneous high demand.
Who is this for?
Homes with 7 or more bathrooms, multi-generational households, and small commercial properties that need whole-property carbon filtration.
Pros
- Built for 7+ bathroom homes and small commercial properties
- Highest service flow in the CF line; no pressure drop
- Same lifetime warranty
- No salt, no electricity, no drain water
- Long media life even under heavy demand
Cons
- Expensive upfront
- Almost always a plumber install
- Large footprint
- Does not soften water
Can I install this myself?
Plumber recommended
The CF+ is the largest residential carbon unit SpringWell sells. The tank is too heavy for one person and the plumbing run is usually 1.25 inch or 1.5 inch, so most owners hire a plumber. Budget $600 to $1,000 for installation depending on region.
What are the running costs I should foresee?
About $60 to $100 per year for pre-filters on the larger 4.5 by 20 housing. No salt, no electricity, no drain. Media bed life around 10 years even under heavy use.
Frequently asked questions
+Who is the CF+ for?
Homes with 7 or more bathrooms, multi-generational households, and small commercial properties such as bed-and-breakfasts that need whole-property carbon filtration without losing pressure.
+Can I install this myself?
Possible but not recommended. The tank is heavy, the plumbing is larger diameter, and most homes that justify a CF+ are already on the edge of needing a plumber for permitting. Budget $600 to $1,000 for professional install.
+What are the running costs?
Roughly $60 to $100 a year for sediment pre-filter cartridges. No electricity, no salt, no backwash. The carbon bed itself is good for about a decade.
+How is it different from the CF4?
Larger tank, more carbon, higher service flow. The CF+ is sized so that simultaneous demand from many fixtures does not drop pressure or push water past the media too quickly.
+Do I need a softener with it?
Yes if your water is hard. The CF+ is a filter, not a softener. Pair with the SS1 (salt-based) for true softening or FutureSoft for scale conditioning.
Ready to look at current pricing?
We don't display prices on this site because the manufacturer changes them frequently.