SpringWell: whole-house water filters, softeners and test kits

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SpringWell is a US water treatment company that sells direct from its own website. Its range covers whole-house filters for city water, salt-based softeners and a salt-free conditioner, systems built for private wells, UV units, under-sink reverse osmosis from Moen, and replacement cartridges. It's aimed at homeowners who want to treat the water coming into the whole house rather than relying on a pitcher in the fridge, and who are happy to install a system or hire a plumber to do it.

Most systems come in several sizes, matched to the number of bathrooms or the flow rate your home needs, and the price on each page changes as you pick a model. The site lists free shipping and a lifetime warranty on its own SpringWell products.

What's worth a look

Here are six products from across the range, priced at the smallest size where there's a choice.

If you're on city water, the Whole House Water Filter System is the core product: SpringWell says it reduces chlorine, chloramine and PFAS, and the CF1 model starts at $1,160.25. Homes on a private well have their own Whole House Well Water Filter System, which uses air injection to tackle iron, sulfur and manganese, the usual causes of orange staining and that rotten-egg smell.

Not sure what's in your water? The City Drinking Water Test: Level 1 costs $112.50, and there's a separate well water kit. Testing first is the sensible way to choose between a filter, a softener or both.

The choice between a softener and a conditioner matters. SpringWell's Salt-Free Water Conditioner is sold as a softener alternative: it says it prevents up to 95% of scale build-up without salt, regeneration or backwashing, and its media lasts 5 years or more. A traditional salt-based softener removes the hardness minerals instead, but you have to keep topping up the salt. If hard water is leaving scale on your fixtures and appliances, it's worth reading both product pages before you decide.

For drinking water at a single tap, the Moen Reverse Osmosis system fits under the kitchen sink and costs far less than a whole-house unit. Some households pair one with a whole-house filter.

Current offers

Our current SpringWell offer is 15% off all SpringWell systems. When we looked, the product pages were already showing prices about 15% below the list price, so check the basket total to see whether you still need a code. The test kit was showing 25% off its $150 list price.

How to save more

• Size the system properly. SpringWell sells several models of most systems, and the smallest suitable one is the cheapest to buy and to refill.
• Look at the dual systems if you want both a filter and a softener. Buying them as a combination can be simpler than ordering two systems separately.
• SpringWell has a page about HSA and FSA payments through Truemed. Read the details and check with your plan before relying on it.

Products, prices and offers checked on the store's own website on 5 Nov 2026. Prices and stock can change.

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