Cut through marketing with verified NSF/ANSI certifications to choose a countertop filter matched to your contaminants, space, and true cost-per-gallon.

Learn how calcite-based RO remineralization restores calcium and pH, improves taste, prevents corrosion, and cuts costs with modular media and simple upkeep.

Learn what ultrafiltration can and can't remove, when it's the right choice, and how to layer certified filters for full protection based on water tests.

Match filters to your water, not marketing. Compare point-of-use and point-of-entry trade-offs, certifications, and costs to build a system that fits your home.

Learn how core filtration mechanisms work and match media to your contaminants using NSF/ANSI standards, smart sequencing, and testing for verified protection.

Match your water report to NSF/ANSI standards and verify reductions, not marketing. See why GE's XWFE offers broad protection at the lowest true cost.

Learn how Springwell’s tank-based system cuts lifetime costs and delivers lab-verified PFAS and lead reductions, with flow-rate sizing and simple upkeep.

Learn what NSF 42 actually covers - taste, odor, chlorine - and when to step up to NSF 53/58. Test first, match risks to standards, and layer filters wisely.