Hard water is a common issue in many households. It leaves stains on dishes, shortens the life of appliances, and makes soap less effective. A water softener system helps solve this problem by reducing minerals like calcium and magnesium from your water supply. Investing in the right system can improve water quality, protect your plumbing, and make cleaning easier.
In this article, we review some of the best water softener systems available on Amazon. We start with Pentair Everpure H-300-NXT and APEC Water Systems ROES-PH75, followed by other top-rated models like iSpring RCC7AK and Whirlpool WHES40E. Each product includes a detailed overview, features, pros, and cons so you can decide which one suits your home best.
Comparison Table: Best Water Softener Systems
| Product | Type | Capacity | Special Feature |
| Pentair Everpure H-300-NXT | Under Sink Filter + Softener | 300 gallons | Reduces lead, chlorine, and scale |
| APEC Water Systems ROES-PH75 | Reverse Osmosis System | 75 GPD | Adds calcium for better taste |
| iSpring RCC7AK | Reverse Osmosis System | 75 GPD | Alkaline remineralization |
| Whirlpool WHES40E | Whole House Water Softener | 40,000 grain capacity | Demand initiated regeneration |
| Aquasure Harmony Series | Whole House System | 48,000 grains | Programmable control head |
| AFWFilters IRON Pro 2 | Water Softener + Iron Filter | 64,000 grains | Removes iron and hardness |
| GE GXSH40V Water Softener | Whole House System | 40,200 grains | Custom select blending valve |
1. Pentair Everpure H-300-NXT
The Pentair Everpure H-300-NXT is a compact under-sink water filtration and softening system designed for households that want both cleaner drinking water and softer water in one unit. It helps reduce contaminants like chlorine, lead, and particulates while also addressing scaling issues caused by hard water. With a 300-gallon capacity, this system is ideal for daily cooking, drinking, and cleaning needs.
Its quick-change cartridge makes maintenance simple, and the compact design allows it to fit under most sinks. It provides cleaner water for both health and household use, making it a solid choice for families looking for a reliable water improvement system.
Features
- 300-gallon filter capacity
- Reduces lead, chlorine, and scale buildup
- Compact design fits under sink
- Simple cartridge replacement
- Improves taste and odor of water
Pros:
- Easy to install and maintain
- Helps with both softening and filtration
- Compact and space-saving
- Reliable performance for small households
Cons:
- Limited to under-sink use (not whole house)
- Needs cartridge replacement regularly
2. APEC Water Systems ROES-PH75
The APEC ROES-PH75 is a reverse osmosis water filtration system with a built-in softening feature. It provides 75 gallons per day, making it suitable for medium to large households. One standout benefit is its calcium mineral cartridge, which adds back natural minerals for better taste.
This system uses a 6-stage filtration process to remove over 1,000 contaminants including chlorine, arsenic, fluoride, and heavy metals. Its design focuses on providing pure water while also making it taste fresher. Installation is straightforward, and the unit comes with all necessary parts for setup.
Features
- 75 gallons per day filtration capacity
- 6-stage filtration with reverse osmosis
- Calcium cartridge for balanced pH and taste
- Removes chlorine, arsenic, fluoride, and heavy metals
- Long-lasting filters with low maintenance
Pros:
- Produces great-tasting water
- High capacity suitable for families
- Strong filtration with mineral balance
- Easy DIY installation
Cons:
- Requires space under sink for multiple filters
- Filter replacement can be costly over time
3. iSpring RCC7AK, NSF Certified
The iSpring RCC7AK is another highly rated reverse osmosis system that includes an alkaline remineralization stage. This restores healthy minerals and produces balanced, natural-tasting water. With a 75 GPD output, it supports the daily drinking and cooking needs of a family.
It is NSF certified, meaning it meets strict standards for safety and quality. The system filters up to 99% of harmful contaminants including lead, chlorine, fluoride, and arsenic. Users appreciate its clear installation manual and the customer support that comes with iSpring products.
Features
- 75 gallons per day output
- 6-stage filtration system
- Alkaline remineralization for balanced pH
- Removes up to 99% of contaminants
- NSF certified
Pros:
- Produces clean and balanced water
- Certified for quality and safety
- Reliable customer support
- Affordable replacement filters
Cons:
- Takes up space under sink
- Water flow slightly slower compared to some units
4. Whirlpool WHES40E Water Softener
The Whirlpool WHES40E is a whole house water softener designed to handle medium to large households. It features a 40,000 grain capacity and automatically calculates salt and water usage based on household needs, saving resources over time.
It reduces hard water minerals that cause scale buildup, protecting appliances, plumbing, and fixtures. The demand-initiated regeneration feature ensures it only regenerates when necessary, which helps reduce salt usage and waste water.
Features
- 40,000 grain capacity
- Demand-initiated regeneration
- Whole house water softening system
- Reduces calcium and magnesium buildup
- Helps extend appliance life
Pros:
- Efficient salt and water usage
- Whole house coverage
- Easy to maintain
- Reliable brand with good support
Cons:
- Requires regular salt refilling
- Installation may need professional help
5. Aquasure Harmony Series Whole House Water Softener
The Aquasure Harmony Series is built for families that need a durable whole house solution. With a 48,000-grain capacity, it’s suitable for households with higher water hardness. The digital control head allows easy programming of regeneration cycles, giving you more control over efficiency.
It helps protect plumbing and appliances while improving water for bathing and cleaning. Its build quality and flexible settings make it a dependable choice for long-term use.
Features
- 48,000 grain capacity
- Programmable control head
- Designed for medium to large households
- Reduces calcium and magnesium buildup
Pros:
- Large capacity for whole house use
- Adjustable regeneration cycles
- Improves water quality for skin and appliances
Cons:
- May require professional installation
- Higher upfront cost
6. AFWFilters IRON Pro 2 Combination Water Softener
The AFWFilters IRON Pro 2 is a combination system that handles both hardness and iron in water. With a 64,000-grain capacity, it’s designed for households dealing with high levels of minerals and iron stains.
It reduces hardness, iron, manganese, and sediment, providing cleaner water for the entire home. This system is especially helpful for households with well water.
Features
- 64,000 grain capacity
- Combination iron filter and softener
- Removes hardness, iron, and sediment
- Suitable for well water users
Pros:
- Large capacity for heavy use
- Effective against iron stains
- Improves appliance life and water quality
Cons:
- Installation can be complex
- Large system requires space
7. GE GXSH40V Water Softener
The GE GXSH40V is a compact and efficient whole house water softener with a 40,200-grain capacity. It includes a custom select blending valve that allows you to adjust softness to your preference.
It regenerates based on household water use, saving salt and water. With its simple display and user-friendly design, this model is a good balance of efficiency and convenience.
Features
- 40,200 grain capacity
- Custom select blending valve
- Demand-based regeneration
- Easy-to-read display
Pros:
- Adjustable water softness
- Efficient salt usage
- Reliable performance
Cons:
- Requires salt refills
- May not suit very large households
Conclusion
Finding the best water softener system depends on your household size, water quality, and budget. For under-sink solutions, the Pentair Everpure H-300-NXT and APEC ROES-PH75 are excellent choices, offering both softening and filtration. If you prefer whole house systems, the Whirlpool WHES40E and Aquasure Harmony Series provide reliable coverage for families.
For those with well water and iron issues, the AFWFilters IRON Pro 2 stands out, while the GE GXSH40V is a compact option with flexible settings. Each of these systems can help you enjoy cleaner, softer water while protecting your home’s appliances and plumbing.
Read More:
Best Cordless Stick Vacuum 2025: Quiet Clean & Powerful Picks
