This spring, don’t just clean your home – upgrade the water your family uses every day. From drinking and cooking to bathing and appliance care, better water can make a noticeable difference in comfort, health, and peace of mind.
To help homeowners and small businesses make that upgrade more affordably, iSpring is offering limited-time Spring Sale pricing from March 25 to 31, 2026, on three standout solutions: the RO5004F tankless reverse osmosis system, the WGB31B-PFKDS 3-Stage Whole House Filtration System, and the new WCSTB45KG Whole House Water Softener System.
RO5004F – Tankless Reverse Osmosis for Pure Drinking Water
The RO5004F is ideal for families and small businesses seeking reliable, pure drinking water. This tankless reverse osmosis system combines six-layer purification with UV protection to remove over 99% of more than 1,000 harmful substances, including PFAS, lead, arsenic, chlorine, and fluoride.
With a 500 GPD output, the RO5004F provides a continuous flow of purified water for drinking, cooking, pets, and even small commercial needs. Its compact, tankless design fits neatly under most sinks, freeing up valuable space while maintaining consistent performance.
Installation is simple, supported by clear instructions, YouTube tutorials, and lifetime U.S.-based assistance, ensuring confidence and peace of mind with every use.
Now available for just $279.71 during the Spring Sale, the RO5004F combines powerful 6-stage filtration, tankless convenience, and reliable high-capacity performance – now at 24% off for a limited time.
WGB31B-PFKDS – Whole-Home Filtration for Comprehensive Water Protection
For households seeking comprehensive water safety, the WGB31B-PFKDS 3-Stage Whole House Filtration System delivers clean water to every faucet.
Its three-stage filtration system works as follows:
Stage 1: Removes up to 99% of PFAS, including PFOA and PFOS.
Stage 2: Combines KDF and granular activated carbon to reduce chlorine, lead, mercury, chloramine, hydrogen sulfide, radon, and other contaminants.
Stage 3: Prevents mineral buildup from calcium and magnesium, protecting pipes, water heaters, dishwashers, and washing machines.
Beyond filtration, its high-capacity and durable design allows it to filter up to 80,000 gallons or last up to 12 months, depending on usage.
For homeowners seeking cleaner water at every faucet, the WGB31B-PFKDS delivers powerful whole-home protection, durable performance, and trusted U.S.-based support – all for just $454.94 during the Spring Sale, a limited-time 18% savings.
Introducing New Arrival WCSTB45KG– Whole House Water Softener System
iSpring proudly introduces the all-new WCSTB45KG Whole House Water Softener System, designed to combat hard water that causes scale, spots, stiff laundry, and appliance wear. It delivers soft, clean water to every faucet in your home.
With a 45,000-grain capacity and smart automatic control valve, it adjusts regeneration cycles based on usage and hardness. The digital display allows easy monitoring, while premium resin and a corrosion-resistant tank ensure long-lasting performance. Automatic backwash extends resin life and minimizes maintenance.
Backed by a 30-day money-back guarantee, 1-year warranty, and lifetime technical support, the WCSTB45KG is available during the Spring Sale at $580.98, offering a modern solution to hard water problems.
For nearly two decades, iSpring has been dedicated to delivering more than water treatment solutions—it has been helping households and small businesses build healthier, safer, and more comfortable spaces through better water. Known for combining performance, convenience, and trusted quality, iSpring offers a full range of systems designed to meet the evolving needs of modern life.
This Spring Sale is the perfect opportunity to invest in water that works better for every part of your day. From purified drinking water to whole-home filtration and soft water throughout the house, iSpring’s solutions are designed to bring lasting value, everyday comfort, and greater peace of mind. Upgrade this spring and experience the difference better water can make.