
Meet the New WHO32B series: Now Available for Pre-Sale
When homeowners invest in a whole house water filter system, they're looking for more than clean water. They want a solution that fits seamlessly into everyday life, requires minimal effort to maintain, and delivers dependable performance year after year.
That vision inspired the newest addition to the iSpring family: the WHO32B series.
Available for pre-sale from June 11 through June 30, the WHO32B series introduces a completely new approach to whole home water filtration. While iSpring's trusted WGB series continues to serve as the heavy-duty industry gold standard for millions of homes, the new WHO32B series was engineered with a different mission in mind. Its innovative horizontal design focuses on eliminating physical strain, simplifying routine maintenance, and making ownership easier than ever.
For homeowners who value both performance and convenience, this is your opportunity to be among the first to experience the next evolution of whole house water filtration while saving 20% during our exclusive launch event.
Why Today's Homeowners Expect More Than Just Great Water Filtration
Water quality matters, but modern homeowners evaluate much more than what appears on a water test report.
A whole house water filtration system becomes a long-term part of the home. Over the years, you'll replace filters, monitor system performance, and expect the system to continue working reliably without becoming a burden. That means ease of maintenance, long-term durability, flexible installation options, and simple cartridge access all play a major role in the ownership experience.
The WHO32B series was designed around these real-world considerations. Every detail was engineered to make routine maintenance less intimidating and everyday operation more convenient. This user-first philosophy guided three key design priorities that set the WHO32B series apart.
Three Reasons the WHO32B series Stands Out
Easier to Maintain with Zero-Gravity, Mess-Free Servicing
Routine maintenance should feel like a quick household task, not a workout. Traditional vertical filtration systems often require lifting heavy, water-filled housings during filter replacement. The WHO32B series eliminates that challenge with an innovative horizontal housing design that allows cartridges to slide in and out effortlessly from the front of the unit. The result is a significantly easier filter replacement process that minimizes strain and simplifies servicing.
Maintenance is made even cleaner with a built-in drain valve that allows homeowners to release standing water before opening the system. Instead of dealing with spills and puddles, you'll enjoy a drier, more organized maintenance experience from start to finish. It's a smarter way to care for your water filtration system.
Easier to Personalize with Targeted Protection for Your Home

No two water sources are exactly alike. Some homeowners are concerned about chlorine and sediment from municipal water supplies. Others rely on private wells and need specialized protection against iron, manganese, sulfur odors, or emerging contaminants.
That's why the WHO32B series was built around industry-standard 20" x 4.5" jumbo filter cartridges. These widely available filters help keep maintenance costs manageable while providing homeowners with flexibility and freedom from proprietary replacement requirements.
The lineup includes configurations designed for specific water challenges:
- WHO32B: Ideal for municipal water, reducing chlorine, sediment, odors, and unpleasant taste.
- WHO32BM: Designed for well water challenges with iron and manganese reduction to help prevent rust-colored staining.
- WHO32B-KDS: Enhanced protection against scale buildup and heavy metals.
Additional specialized options include the WHO32B-KS for odor, heavy metals, and hydrogen sulfide concerns, the WHO32B-MKS for homes facing iron, manganese, heavy metals, and H₂S issues, and the WHO32B-PFKDS for households needing support for PFAS reduction, scale control, and other complex water quality concerns.
Instead of forcing every household into a one-size-fits-all solution, the WHO32B series gives homeowners the ability to select the protection that matches their unique water conditions.
Thoughtful Design, Practical Benefits

Great engineering doesn't always require complex technology. Sometimes the most meaningful innovations are the ones that make everyday tasks easier.
The WHO32B series features a freestanding all-metal frame that provides exceptional installation flexibility. Because the system doesn't require wall mounting, homeowners and installers have more freedom when choosing placement locations, including basements, garages, utility rooms, and other service areas.
The system also incorporates iSpring seal mark alignment system. This visual reference makes it easy to achieve the proper seal during maintenance. Simply align the logo markings for correct installation, helping prevent overtightening and reducing the risk of damaging internal O-rings. It's a simple feature that can save time, frustration, and unnecessary wear over the life of the system.
Seamless Water Pressure: Built for the Demands of a Busy Home
A whole home water filter should support your lifestyle without slowing it down. Imagine a typical evening at home. Dinner is being prepared while vegetables are rinsed at the kitchen sink. The dishwasher is running after the meal. A load of laundry is washing, and at the same time, someone is enjoying a relaxing shower. That's a significant amount of water demand happening simultaneously.
The WHO32B series was engineered to keep up. Its heavy-duty 1" FNPT inlet and outlet connections support strong water volume throughout the home. The system delivers a robust flow rate of up to 15 gallons per minute (GPM), helping maintain consistent performance across multiple fixtures and appliances at the same time.
Designed to operate within a working pressure range of 25 to 80 psi and temperatures between 40°F and 100°F, the system provides reliable performance for typical residential environments.
Like every iSpring whole house water filter, the WHO32B series is also TDS-friendly. It reduces harmful contaminants while retaining healthy, naturally occurring minerals that contribute to balanced water quality.
Engineered for the Long Run: Long-Term Value You Can Trust
A water filtration system isn't just an installation-day purchase. It's an investment in years of cleaner water and household protection.
The WHO32B series was built with longevity in mind. Its high-capacity filtration system can provide up to 100,000 gallons of protection, or approximately 12 months of service before replacement under typical usage conditions.
Behind the product stands the quality and reliability homeowners have come to expect from iSpring. Since 2007, iSpring has served millions of homes and businesses across more than 21 countries. Every WHO32B series system is backed by lifetime technical support from dedicated human agents, including our experienced support team based in Atlanta, Georgia. From installation to routine maintenance and beyond, homeowners can feel confident knowing expert assistance is always available.
The WHO32B series was engineered not just to perform on day one, but to keep your household water running smoothly for years to come.
Save 20% During the WHO32B series Pre-Sale
The launch of the WHO32B series marks an exciting new chapter in whole-home water filtration, and early buyers have a unique opportunity to save.
From June 11 through June 30, homeowners can enjoy an exclusive 20% discount across all WHO32B series configurations.
This limited-time pre-sale event represents the best opportunity to upgrade your home's water filtration system before the official release and secure launch pricing on iSpring's first-ever horizontal whole house filtration system platform.
Don't miss your chance to experience cleaner water, easier maintenance, and a smarter ownership experience while enjoying significant savings.
Shop the WHO32B series Pre-Sale — Save 20% Today!