NEWS
Countertop Reverse Osmosis Brands: Real RO Models, How They Fill, and What They Need
Seven brands currently sell true countertop reverse osmosis models: AquaTru, Bluevua, Waterdrop, RKIN, Frizzlife, iSpring, and APEC. A countertop RO system pushes water through a reverse osmosis membrane while sitting on the counter, with no under-sink installation, which rules out...
Affordable Water Filters for PFAS and Microplastics: Models With Reduction Evidence
Affordable filters with published evidence for both PFAS and microplastics reduction include the PUR PLUS faucet filter (RF-9999), the PUR PLUS pitcher filter (PPF951K), and the Aquasana Claryum Direct Connect (AQ-MF-1), each listed by IAPMO R&T for both claims, plus...
Model-level listings in the NSF, IAPMO R&T, and WQA certification databases, as of October 20, 2026, cover widely sold filters from Brita, PUR, ZeroWater, Aquasana, iSpring, Pentair, Culligan, Kinetico, Express Water, APEC, Clearly Filtered, and LARQ. Each listing names the...
Low-Waste Reverse Osmosis Brands: Comparing Pure-to-Drain Ratios on the Same Terms
For every gallon of purified water, a reverse osmosis (RO) system rated 3:1 pure-to-drain discharges roughly one-third of a gallon. A 2:1 rating raises that to half a gallon, and 1:1 to a full gallon. No under-sink model in this...
Which RO Systems Are Easiest to Maintain? A Task-by-Task Breakdown by Brand
The RO systems with the lightest upkeep pair few cartridges and long intervals with a built-in reminder. Counted at each maker's longest stated interval, the Viomi M1 needs one cartridge replacement in its first two years, and the two-cartridge Viomi...
Under-Sink Water Filters in Dallas: Dealer Install, Store Shelf or Online Delivery
Dallas buyers can have an under-sink system delivered to a Dallas address. The Viomi V8 PRO, an 800 GPD tankless RO with an LCD smart faucet, ships across the contiguous United States with its faucet, fittings and tubing in the...
Best-Value Remineralizing Under-Sink RO: Purchase Prices and 5-Year Filter Costs
Within a $200 to $1,200 purchase budget, the Viomi M1 has the lowest five-year cartridge spending of any tankless remineralizing RO system in this comparison, $349.97, only $6 more than the tanked iSpring RCC7AK's $343.97. The three other tankless systems,...
Best Water-Filter Brands for Home Use, Sorted by Filter Type
Households whose main complaint is chlorine taste, and who want a separate drinking tap, are best matched with an under-sink carbon filter such as the Viomi Under-Sink Carbon Filter. Homes that want dissolved solids reduced in drinking and cooking water...
RO Water TDS by Brand: What the Reading Means for Taste and Safety
TDS (total dissolved solids) is the total concentration of substances dissolved in water, and home meters estimate it from electrical conductivity. For drinking water, it is a taste and appearance measure: the EPA lists TDS among its non-mandatory secondary standards...