Effective and inexpensive, certified activated carbon whole house filtration system
- It has a 100,000-gallon capacity activated carbon filter that should cover a household of four for a year
- The iSpring is certified by the NSF to remove any particles larger than 5 microns and is effective at removing chlorine, sediment, herbicides, pesticides, rust, and up to 95% of the contaminants in your water
- This system is equipped with three stage filtration but, unlike an RO system, it does not reduce Total Dissolved Solids (TDS), meaning that it retains the healthy minerals in your water
NSF/ANSI Standard 42, NSF Standard 53
Country of originUSA
The iSpring WGB32B 3-Stage Whole House Water Filtration System is one of the best options for a whole home water filtration system. It has a 100,000-gallon capacity activated carbon filter that should cover a household of four for a year, depending on water consumption. The iSpring is certified by the NSF to remove any particles larger than 5 microns and is effective at removing chlorine, sediment, herbicides, pesticides, rust, and up to 95% of the contaminants in your water.
This system is certified to meet NSF/ANSI Standards 42 and 53 for drinking water treatment units. The iSpring whole house system removes up to 98% of sediment, chlorine, chloramines, chemicals, heavy metals and other contaminants that create color, foul tastes and odors (as tested by SGS, 2018).
This system is equipped with three stage filtration but, unlike an RO system, it does not reduce Total Dissolved Solids (TDS), meaning that it retains the healthy minerals in your water. The first stage high capacity polypropylene sediment filter achieves filtration down to 5 microns. The second and third stage CTO Carbon Block filter uses high quality coconut shell carbon for maximum filtration efficiency and filter life. Both are tested by independent third-party to meet NSF/ANSI Standards.
The iSpring also has the advantage of allowing up to 15 gallons of water to filter through the system every minute, so it won’t cause a sharp reduction in water pressure. For most households, a flow rate of 6 GPM is fine, though. The system is installed at the main water supply, so if your water is especially hard, with a high TDS count (more than 700 PPM), you’ll want to install a water softener or RO system before water reaches this unit. This will help improve the performance of the iSpring and extend the filter life.
The package includes a black metal bracket, three big blue housings with caps, three filter cartridges, and a 4.5 inch housing wrench. You’ll also want to have some plumbing tape handy to secure the connections, otherwise some leaking may occur. As this product does not carry a Prop 65 warning, we can safely assume that the internal metal fittings are lead-free.
If you are on well water or have unusual contaminants in your municipal water supply, consider the WGB32BM over the WGB32B. The WGB32BM has an additional FM25B iron and manganese removal filter that efficiently reduces iron (3.0 -> 0.01 ppm) and manganese (1.0 -> 0.01 ppm) and lasts up to 3 times longer than greensand because the catalytic media is not being consumed in the process. This is a good option to protect household appliances such as the dishwasher and washing machine from mineral damage.
Every iSpring product comes with a thirty-day money back policy and one-year limited manufacturer warranty and iSpring have a strong reputation for customer care.
iSpring vs. Aquasana
If you’re a stickler for certifications and want a complete home water filtration system, go for the iSpring WGB32B or WGB32BM and pair it with a certified UV system and water softener. The less expensive WGB32B will likely be sufficient if your water is pre-treated. If you’re on well water, the WG32BM is likely the better choice, paired with an antimicrobial UV filter.
Both iSpring systems and the Aquasana deliver excellent performance with great customer support, but the Aquasana Rhino 10-Year system lacks certifications for the unit as a whole. That said, the Aquasana’s individual parts are certified for their respective functions. As such, if you’re keen to cover all your bases in a single system that is designed to work together, the Aquasana is your best option.