Whole house water filters in our catalog currently range from about $166 for a basic two-stage cartridge system to about $8,030 for a large multi-stage tank system. Water softeners, salt-free conditioners and UV systems are priced separately, and every system adds replacement filters and an installation cost on top. Your water test, your household's flow rate and the contaminants you need to reduce decide which end of that range you land on.
The short answer
City water, mainly chlorine taste and sediment: a cartridge system, currently about $166 to about $1,350.
Higher flow, larger home or a specific contaminant: a tank (media) system, currently about $840 to about $8,030.
Hard water or well water problems: add a softener, conditioner or UV system, priced in the table below.
What you are paying for
A whole house system (also called point-of-entry) treats water where the main line enters the home, so every tap, shower and appliance gets filtered water. That is why it costs more than a single drinking-water filter. It has to handle the flow of the whole household at once, and it has to hold enough media to last months or years between changes.
The EPA notes in its home filter fact sheet that a filter "can cost as little as $20 or more than $1,000 (not including maintenance costs)," depending on whether it is a pitcher, a faucet unit or a system for the entire home. Whole house systems sit at the top of that spread.
Whole house filter prices by system type
These ranges come from the systems we sell that can be ordered online today. They change as manufacturer prices change, so treat them as a current snapshot, not a quote.
| System type | How it works | Current price range | Usual fit |
|---|---|---|---|
| Cartridge (housing) system | One to three filter housings in a row, each with a replaceable cartridge | about $166 to about $1,350 | City water, chlorine taste and odor, sediment, smaller homes |
| Tank (media) system | A tall tank of filter media with a control valve, often with pre and post cartridges | about $840 to about $8,030 | Larger homes, higher flow, targeted contaminants such as lead, fluoride or arsenic |
| Water softener | Ion exchange resin, regenerated with salt | about $1,530 to about $3,500 | Hard water |
| Salt-free conditioner | Anti-scale media, no salt or regeneration | about $2,150 to about $2,950 | Scale control without salt |
| UV system | Ultraviolet lamp in a flow chamber, sized by flow rate | about $170 to about $3,470 | Well water with a microbiological concern on the test |
| Whole house reverse osmosis | Reverse osmosis membranes sized for the whole home | about $2,230 to about $10,090 | Specialty cases with high dissolved solids |
Browse every option in our whole home filtration collection and the UV purification collection.
What drives the price
Flow rate and household size
Flow rate, measured in gallons per minute (GPM), is the biggest single factor. A system that is too small for the household drops water pressure when two showers run at once. Manufacturers size their systems for this. The Compact Whole House Water Filter, SMART Series is rated 3 to 6 GPM for 1 to 2 people and currently starts at $240.35. The Big Blue SMART Series is rated 6 to 8 GPM for 2 to 3 people and starts at $536.25. The SMART Whole House Water Filter is rated 9 to 13 GPM and starts at $1,791.
Stages and media
More stages means more media and more housings. Within one product line, a triple configuration can cost more than twice as much as a single. The Compact SMART Series, for example, runs from $240.35 for a single unit to $575.25 for a triple unit with a stand. Systems built to target one contaminant, such as lead, fluoride or arsenic, use specialty media and sit higher in the range.
Tank material and control valve
Tank systems often come in fiberglass or stainless steel, with a manual or automatic valve. On the Eagle 1000 Whole House Filter + Alkalizer, an 11-stage system rated at 8 GPM, the fiberglass manual version is currently $837 and the stainless steel automatic version is $2,395. Same system, different build.
Combination systems
Many tank systems are sold with a softener or a salt-free conditioner attached. The SMART Whole House Water Filter currently runs from $1,791 standalone to $5,242 with a salt-free conditioner in stainless steel. If you need both filtration and hardness control, a combination can be simpler to install than two separate systems. Our guide to water softeners vs. salt-free conditioners explains that choice.
The costs after you buy
Replacement filters
Every system has consumables. Cartridge systems need new cartridges on the manufacturer's schedule. Our SMART Filter Cartridge, used in the SMART cartridge systems, currently ranges from $59 to $401 depending on size and grade. Tank systems usually have pre and post cartridges that are replaced more often than the main media. Check each product page for the replacement part and interval, and see how often to replace a water filter.
Salt, lamps and power
Softeners use salt for regeneration and a drain connection. UV systems need electricity and a lamp that is replaced on the manufacturer's schedule. Cartridge and most tank filters need no power at all.
Installation
A whole house system is plumbed into the main water line, usually where it enters the home and before the water heater. Most homeowners hire a plumber. Prices vary by region and by how much pipe work is needed, so get a local quote before you budget. Our installer finder lists local plumbers and installers by ZIP code.
How to avoid paying for the wrong system
The most expensive mistake is buying treatment for a problem you do not have, or missing one you do. Start with what is in your water.
- City water: your utility sends an annual water quality report, the Consumer Confidence Report, each year by July 1. It lists what was detected.
- Private well: the CDC recommends testing at least once a year for total coliform bacteria, nitrates, total dissolved solids and pH.
Our guide to city water vs. well water filtration walks through what each source usually needs. If your main goal is drinking water rather than the whole house, a point-of-use system costs far less. See how to choose a reverse osmosis system for your home.
Get a price that fits your water
Take the whole home filter quiz, or send us your ZIP code and water source through our Free Water Match and we will match your results to a system and a budget.
Frequently asked questions
How much does a whole house water filter cost?
In our catalog, whole house filters currently range from about $166 for a two-stage cartridge system to about $8,030 for a large multi-stage tank system. Softeners, salt-free conditioners and UV systems are priced separately.
What is the cheapest type of whole house filter?
Cartridge (housing) systems cost the least up front, currently from about $166. They suit city water with chlorine taste, odor or sediment. Their cartridges are replaced more often than tank media.
Why do tank systems cost more than cartridge systems?
Tank systems hold far more media, support higher flow rates and often include a control valve and pre and post filters. That suits larger homes and targeted contaminants, and it raises the price.
Does the price include installation?
No. Product prices cover the equipment. Installation is quoted separately by a local plumber or installer, and it depends on your plumbing and region.
What ongoing costs should I budget for?
Replacement cartridges or media on the manufacturer's schedule, salt for a softener, and replacement lamps and electricity for a UV system. Each product page lists its replacement part.
Do I need a water test before buying a whole house filter?
A test or your utility's annual water quality report tells you what to treat, so you do not pay for stages you do not need. Well owners should test at least once a year, per the CDC.
Price ranges are the systems on reinwaterusa.com that could be ordered online on October 9, 2026, and change with manufacturer pricing. The cost range quote is from the EPA fact sheet "Reducing PFAS in Your Drinking Water with a Home Filter" (April 2024). Consumer Confidence Report timing is from the EPA. Well testing frequency is from the CDC. Flow ratings and configurations are listed on each product page.