Aquasana vs Culligan: Which Well Water System is Right for You?
Aquasana and Culligan are two of the most recognized names in whole-house water filtration. Both treat well water, but they take different approaches to installation, monitoring, and product range. Here's how they compare.
Quick Comparison
| Feature | Aquasana | Culligan |
|---|---|---|
| Whole House Filtration | ✓ | ✓ |
| UV Sterilization | ✓ | - |
| Built-in Water Softening | ✓ | ✓ |
| Reverse Osmosis | ✓ | ✓ |
| Smart App Monitoring | - | ✓ |
| Free In-Home Consultation | - | ✓ |
| Dealer/Pro Installation | Optional | Standard |
Aquasana Overview
Aquasana is known for consumer-focused, independently tested whole-house systems. Its Rhino Well Water with UV combines multi-stage filtration with UV disinfection against bacteria, viruses, and cysts, and is marketed with a long service life.
Best For:
- Well owners who want filtration plus UV in one package
- Buyers who prefer a packaged, product-first purchase
- Homes needing bacteria/cyst protection across every tap
Key Strengths:
- Integrated UV protection for microbial safety
- Long-life whole-house filtration
- Strong reputation for independent testing
Culligan Overview
Culligan is a long-established water treatment company with a dealer network, free in-home water testing, and smart monitoring. Its whole-home media filters (Cullneu, CULLAR, Filtr-Cleer) target iron, sediment, sulfur, and chlorine, and the Culligan Connect app provides remote monitoring and service alerts.
Best For:
- Owners who want professional testing and installation
- Complex well water with iron, sulfur, and hardness
- Buyers who value smart monitoring and local service
Key Strengths:
- Free in-home water consultation and testing
- Smart app monitoring with service alerts
- Broad dealer/service network and customizable systems
Which Should You Choose?
Choose Aquasana if:
- You want filtration and UV disinfection in one packaged system
- You prefer a product-first purchase you can research and buy directly
- Microbial protection across the whole house is a priority
Choose Culligan if:
- You want a professional to test your water and size the system
- Your well has complex iron, sulfur, or hardness issues
- Smart monitoring and local dealer service matter to you
Frequently Asked Questions
Is Aquasana or Culligan better for well water?
Neither is universally better. Aquasana shines as a packaged whole-house system with integrated UV, while Culligan excels when you want professional testing, custom-sized media filters, and ongoing dealer service. The right choice depends on your water test and whether you prefer DIY or pro support.
Does Culligan or Aquasana include UV for bacteria?
Aquasana's Rhino Well Water with UV includes UV disinfection in the package. Culligan offers disinfection as part of its broader system design but is best confirmed via its free in-home consultation. For UV-focused options, see our best UV systems guide.
Do both treat iron in well water?
Yes. Aquasana's whole-house systems and Culligan's media filters (like Filtr-Cleer) both address iron, though heavy iron may need a dedicated stage. Compare options in our best iron removal filters guide.
Looking for more options? Browse all listings or see our Best Whole House Well Water Filters guide.