Brands
APEC Water Systems22 productsAPEC Water Systems is the consumer brand of Advanced Purification Engineering Corp, founded in 1995 and based in City of Industry, California, where it assembles its…View comparisons
Aquasana18 productsAquasana is a water filtration brand covering whole-house systems, reverse osmosis, under-sink, countertop, and shower filters. Its flagship Rhino whole-house line uses an upflow dual-tank design…View comparisons
Aquasure30 productsAquasure Corporation is a factory-direct water treatment brand based in Upland, California, selling through its own site and through Home Depot, Lowe's, Ace and Amazon. Its…View comparisons
Berkey11 productsBerkey is a gravity-fed water filtration brand built around stainless steel countertop systems that need no plumbing, no electricity and no water pressure. Water is poured…View comparisons
Crystal Quest30 productsCrystal Quest is a Kennesaw, Georgia manufacturer of water filtration equipment, trading since the mid 1980s and selling factory-direct alongside an Amazon storefront. The catalogue is…View comparisons
Express Water24 productsExpress Water is a Diamond Bar, California company founded in 2006 that sells reverse osmosis and whole house filtration direct and through Amazon. Its position is…View comparisons
FilterSmart11 productsFilterSmart is a factory-direct water treatment company based in Santa Barbara, California, built around two ideas: upflow granular activated carbon and salt-free scale conditioning. Its range…View comparisons
iSpring24 productsiSpring has been building residential water filtration out of Cumming, Georgia since 2005. The company sells direct rather than through distributors, and is explicit that this…View comparisons
Kind Water Systems27 productsKind Water Systems is a factory-direct manufacturer based in Daytona Beach, Florida, selling whole-house filtration, softening and UV treatment without dealers or installers. Its distinguishing product…View comparisons
NuvoH2O14 productsNuvoH2O is a Utah-based manufacturer of salt-free water conditioning systems built around CitraCharge, a proprietary citric-acid formulation. The technology is chelation rather than ion exchange: the…View comparisons
SoftPro Water Systems14 productsSoftPro Water Systems sells water softeners and whole-house filtration factory-direct from Box Elder, South Dakota, under the same ownership as Quality Water Treatment. Its hardware is…View comparisons
SpringWell30 productsSpringWell Water is a Florida-based water treatment company with more than 20 years of experience in residential water quality. The company sells factory-direct and backs its…View comparisons
US Water Systems18 productsUS Water Systems is a family-owned water treatment manufacturer and factory-direct retailer based in Plainfield, Indiana, founded in the early 2000s by industry veteran Mark Timmons.…View comparisons
WaterChef11 productsWaterChef is a Nevada-based manufacturer of point-of-use water filtration systems, selling factory-direct from waterchef.com rather than through retail. Its drinking-water range is built on a single…View comparisons
Waterdrop29 productsWaterdrop is a water filtration brand best known for tankless reverse osmosis, a category it effectively created for the US market when the original G3 launched…View comparisons
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