Culligan vs Aquasana
Culligan and Aquasana take different paths to the same goal: better water at the tap. Culligan is a legacy water-treatment company built around local dealer installation and service; Aquasana sells direct-to-consumer systems designed for self-install.
Pick Culligan if you want a local dealer to handle sizing, installation, and ongoing service — especially for a softener or whole-house system. Pick Aquasana if you'd rather self-install a well-documented system and skip the dealer visit and service contract.
Side-by-side comparison
| Attribute | Culligan | Aquasana |
|---|---|---|
| Business model | Local dealer network — in-home consultation and professional install | Direct-to-consumer — ships to your door, self-install |
| Product range | Whole-house filtration, softeners, RO, drinking water systems | Whole-house filtration, RO, under-sink, shower filters |
| Typical install | Professional installation via local dealer | DIY-friendly, documented self-install |
| Service model | Ongoing dealer service plans available | Self-serve filter replacement, customer support |
| Best for | Buyers who want a dealer to size and install a whole-house or softener system | Buyers comfortable with a DIY install who want to skip a dealer visit |
| Price tier | $$$ (installed system + service) | $$–$$$ (self-install, no service contract) |
Which one to pick
Whole-house softener + filtration combo
Culligan — its dealer network specializes in sizing multi-stage whole-house systems for local water conditions.
Self-install on a budget
Aquasana — designed for DIY installation without a dealer visit.
Ongoing professional service and maintenance
Culligan — local dealer service plans are part of its core model.
Renters or buyers who may move soon
Aquasana — DTC systems are easier to uninstall and take with you.
Frequently asked questions
Do I need a dealer visit to buy from Culligan?
Culligan's core model is built around local dealers who assess your water and handle installation — some products are also available for direct purchase, but the dealer-service experience is its main differentiator.
Can I install an Aquasana system myself?
Yes — Aquasana's systems are designed and documented for self-installation, which is a large part of why they cost less than a dealer-installed equivalent.
Which is better for well water?
Both companies offer systems suited to well water (sediment, iron, softening), but a Culligan dealer can test your specific well water and recommend sizing directly, which is valuable if your water quality is unusual.
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