Bestbuy.com: Water purifiers
The Best
AquaTru - Carafe Smart Alkaline Countertop Water Purifier App-Connected 4-Stage Reverse Osmosis System with Glass Carafe - White
445 USD
Aqua TRU Carafe Countertop Water Purifier 4-Stage Ultra Reverse Osmosis Technology
Top
Waterdrop - K19-SFK Reverse Osmosis Water Filter Countertop, Alkaline Minerals, Countertop Reverse Osmosis System - White
349 USD
The Waterdrop K19-SFK is a BPA-free countertop reverse osmosis system with 7-stage filtration that reduces TDS, PFAS, chlorine, lead, and more while adding beneficial minerals such as potassium, calcium, sodium, and magnesium for healthier, better-tasting water. Tested by SGS for safety, it delivers pure hydration with a 3:1 pure-to-drain ratio, saving over 4000 plastic bottles annually. Its compact, installation-free design fits any countertop in kitchens, offices, bedrooms, or RVs, and the 170 oz tank provides enough water for a full day. With a smart screen, touch controls, adjustable water volumes, and a 12-month long-lasting composite filter, it ensures convenient, efficient, and sustainable water purification.
Excellent
AquaTru - Carafe Smart Countertop Water Purifier App-Connected 4-Stage Reverse Osmosis System with Glass Carafe - White
425 USD
AquaTru Carafe Smart Alkaline Countertop Water Purifier App-Connected 4-Stage Reverse Osmosis System with Glass Carafe Removes Forever Chemicals, Lead & Fluoride Adds Minerals No Plumbing
Recommended
AquaTru - Classic Alkaline Countertop Water Filter System for PFAS &Other Contaminants 4-Stage Reverse Osmosis Technology - White
445.5 USD
AquaTru Classic Alkaline Countertop Water Filter System 4-Stage Ultra Reverse Osmosis Technology & BPA Free
Featured
Waterdrop - WD-M6H Instant Hot Reverse Osmosis System Countertop Water Filter, 7-Stage - Black
429 USD
3:1 Pure to Drain, Hot Water Dispenser with 5 Temperature Options, RO System with Glass Pitcher, BPA-Free
Alternative
AquaTru - Classic Countertop Water Purifier Certified 4-Stage Reverse Osmosis System Removes 84 Contaminants - White
427.5 USD
AquaTru Classic Countertop Water Filtration Purification System Ultra Reverse Osmosis Technology & BPA Free
AquaTru - Carafe Countertop Water Purifier Compact 4-Stage Reverse Osmosis System w Glass Carafe Removes 84 Contaminants - White
375 USD
Compact purifier with glass pitcher, perfect for smaller households. "2026 Good Housekeeping Kitchen Award Winner" "The Best Water Purifier 2025" - Esquire
Hydrofast - C100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Cold & Room Temp, 3:1 Pure to Drain, BPA Free - Gray
299.99 USD
The Hydrofast C100 Countertop RO Water Purifier provides instant chilled 50Β°F (10Β°C) water with a 6-stage filtration system, including UV sterilization, that removes 99.9% of contaminants. The side-mounted 1.06-gallon tank is easy to refill, and the system requires no installationβjust plug in and use. With a 3:1 pure-to-waste ratio, the C100 produces up to 528 gallons of purified water annually. BPA-free and low maintenance, it offers clean, safe water with a simple filter replacement.
Waterdrop - K19-S Countertop Reverse Osmosis System, 4 Stage Reverse Osmosis Water Filter Countertop - White
309 USD
The Waterdrop K19-S is a BPA-free countertop reverse osmosis system with 4-stage filtration that effectively reduces PFAS, chemicals, heavy metals, and other contaminants to provide safe, great-tasting water. Designed with a 170 oz high-capacity tank, it offers convenience for families and can be placed anywhere without installation, making it ideal for kitchens, offices, bedrooms, or RVs. With a 3:1 pure-to-drain ratio using advanced wastewater circulation technology, it saves water and reduces waste. Compact and easy to use, it features simple filter replacement and delivers efficient daily hydration without the need for plumbing or drilling.
Waterdrop - Alkaline Water Filter WD-ALK35, Alkaline Filter for Reverse Osmosis System - White
29.99 USD
pH Balance and Restore Minerals for RO Alkaline Filter, Under Sink Water Filter, 1/4" Quick Connect
Waterdrop - WD-WHF21-PBH 2 Stage Whole House Water Filter System, with Heavy Metal Sediment Filter Extra WD-WF10PBH Filters - Blue
212.98 USD
Highly Reduce PFAS, Mercury, Lead, Iron, Manganese, Chlorine for Well/City Water, WD-WHF21-PBH, 1" Inlet/Outlet
Waterdrop - WD-WHF21-PBH 2 Stage Whole House Water Filter System, with Heavy Metal Sediment Filter Extra WD-RPFK Filters - Blue
208.98 USD
Highly Reduce PFAS, Mercury, Lead, Iron, Manganese, Chlorine for Well/City Water, WD-WHF21-PBH, 1" Inlet/Outlet
Waterdrop - Whole House Water Filter System, 5-Stage Filtration, Reduce Iron, Lead, Chlorine - Blue
179.99 USD
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Waterdrop - WD-WHF21-BG 2 Stage Whole House Water Filter System, with Carbon Filter and Sediment Filter Extra WD-WF10BG Filters - Blue
209.98 USD
5-Stage Filtration, Highly Reduce Chlorine, Taste, Odor, 5 Micron WD-WHF21-BG, 1" Inlet/Outlet
Waterdrop - WD-WHF21-BG 2 Stage Whole House Water Filter System, with Carbon Filter and Sediment Filter Extra WD-RPFK Filters - Blue
223.98 USD
5-Stage Filtration, Highly Reduce Chlorine, Taste, Odor, 5 Micron WD-WHF21-BG, 1" Inlet/Outlet
Waterdrop - WD-WHF21-PBH 2 Stage Whole House Water Filter System, with Heavy Metal Sediment Filter - Blue
169.99 USD
Highly Reduce PFAS, Mercury, Lead, Iron, Manganese, Chlorine for Well/City Water, WD-WHF21-PBH, 1" Inlet/Outlet
Waterdrop - X16 Reverse Osmosis System Extra WD-PT-05B-L Water Filter Pitcher - Black
1611.99 USD
The Waterdrop X16-Alkaline is a high-capacity tankless under sink reverse osmosis system delivering 1600 GPD fast flow with a 3:1 pure-to-drain ratio, certified by NSF/ANSI 42, 58, and 372 and tested by SGS to reduce harmful contaminants. Featuring 11-stage precision filtration with a reinforced 0.0001ΞΌm RO membrane, it effectively removes TDS, PFAS, chlorine, fluoride, arsenic, lead, and more, while its PCC mineralization technology infuses healthy minerals to balance pH to about 7.5 for smoother, alkaline water. The intelligent digital faucet displays real-time TDS, filter life, and supports precise water volume control, while the tankless design saves space and ensures easy installation. With energy-saving mode, sustainable packaging, and carbon-neutral certification, the X16 provides instant, safe, and eco-friendly hydration at peak performance.
Waterdrop - WD-WHF21-BG 2 Stage Whole House Water Filter System, with Carbon Filter and Sediment Filter - Blue
179.99 USD
5-Stage Filtration, Highly Reduce Chlorine, Taste, Odor, 5 Micron WD-WHF21-BG, 1" Inlet/Outlet
Water purifiers Bestbuy.com best products
Waterdrop - X16-Alkaline Reverse Osmosis Water Filter Extra F2 Filter - Black
1629.99 USD
NSF/ANSI 42&58&372; Certified, 1600 GPD RO System, 11-Stage Filtration, UnderSink, 3:1 Pure to Drain, Alkaline Mineral pH+, Stainless Steel Faucet
Waterdrop - WD-M1 Reverse Osmosis Water Filter Countertop, Hot Water Countertop Reverse Osmosis System - Black
379 USD
The Waterdrop WD-M1 Reverse Osmosis Water Filter Countertop system combines hot water dispensing with 7 temperature options and 6-stage purification, reducing harmful contaminants while delivering clean, safe water. Its 50oz portable glass pitcher is BPA-free, food-grade, and designed with a semi-sealed, transparent body that allows you to observe the boiling process while keeping dust and insects out. With a 3:1 pure-to-drain ratio, no installation required, and an automatic refill function, this countertop RO system offers convenient, efficient, and healthier hydration at home or in the office.
Waterdrop - WD-M1 Reverse Osmosis Water Filter Countertop, Hot Water Countertop Reverse Osmosis System - Black
438.9 USD
7 Temperature Options, 6 Stage Purification, 3:1 Pure to Drain, No Installation, Gray
Waterdrop - WD-M6H Instant Hot Reverse Osmosis System Countertop Water Filter, extra M6RF filter
416.99 USD
7-Stage, 3:1 Pure to Drain, Hot Water Dispenser with 5 Temperature Options, RO System with Glass Pitcher, BPA-Free
Waterdrop - 3-Stage Whole House Water Filter System,Reduce Iron&Manganese - Blue
395.98 USD
3-Stage Whole House Water Filter System,Reduce Iron&Manganese,with; Carbon &Sediment; Filters,7-Stage Filtration,Reduce Lead,Chlorine,Odor,5 Micron WHF3T-FG,1" Inlet/Outlet
VEVOR - Whole House Water Filter System, 3-Stage Sediment, IMR, CTO 4.5" x 20" Home Water Purifier Filter Reduce Iron - Blue, White
279.9 USD
This 3-stage whole house water filter system efficiently removes sand, rust, odors, and harmful substances, purifying the entire homeβs water supply to improve water quality and protect appliances.
AquaTru - Classic Smart Alkaline PH Countertop Water Purifier for Forever PFOA, PFOS & Other Contaminants with App - White
490.5 USD
Pure Alkaline: Transforms tap water into pure, delicious alkaline water with a proprietary blend of healthy minerals and activated carbon, removing VOC contaminants.
AquaTru - Carafe Alkaline Countertop Water Purifier Certified 4-Stage RO System Removes 84 Contaminants No Plumbing - White
395 USD
AquaTru Carafe Alkaline Mineral Boost Countertop Water Purifier 4-Stage Ultra Reverse Osmosis Technology & BPA Free
Waterdrop - WD-PT-07C Water Filter Pitcher, 200-Gallon Long-Life, Extra PF-AL-3 Alkaline Filters - Blue
58.32 USD
10-Cup Large Water Filter Pitcher, NSF Certified, 5X Times Lifetime, Reduces PFOA/PFOS, Chlorine, Classic Blue
Waterdrop - WD-WHF21-PG Whole House Water Filter System, with Carbon Filter and Sediment Filter, 5-Stage Filtration - Blue
139.99 USD
The impressive 10β x 4.5β PP filter and GAC filter combination achieves a 5-stage filtration, effectively reducing large particles and sediments larger than 5 microns. The whole house water filter also reduces chlorine, lead, benzene, mercury, peculiar smell, sand, rust, and more. GAC filter adopts natural coconut shell, which reduces funny taste and odor, while improving the water taste for you. With this filter, you get constant pure water with a better taste.
AquaTru - Classic Smart Countertop Water Purifier Reverse Osmosis with App No Plumbing or Installation Required BPA Free - White
525 USD
AquaTru Classic Smart Countertop Water Filtration Purification System 4-Stage Ultra Reverse Osmosis Technology with App & WiFi Capability. Updated Name Alert! To streamline our product names for the countertop series, the AquaTru Connect Alkaline is now called the AquaTru Classic Smart Alkaline. Same great water, new great name
Hydrofast - B100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Room Temp, 3:1 Pure to Drain, UV Sterilization - White
199.99 USD
Upgrade your hydration with the Hydrofast B100βthe smarter, cleaner, and more convenient way to enjoy pure water every day! Featuring a powerful 6-stage RO filtration system with built-in UV sterilization, it removes 95% of TDS, eliminates heavy metals, fluoride, and over 1,000 contaminants, while remineralization adds essential nutrients for healthier, better-tasting water. No installation neededβjust plug and play on any countertop in your home, office, or RV. The eco-friendly 3:1 pure-to-drain ratio reduces waste, and the long-lasting filter lasts up to 12 months with easy twist-and-pull replacement. Stay in control with the smart display, offering instant TDS readings, filter status updates, and quick-select dispensing options (3.4/8.5/15.2/20.3 fl oz). With a rapid 100 GPD flow rate and a 1.06-gallon tank, youβll always have fresh, safe water on demand. Ditch plastic bottles and embrace a sustainable lifestyleβthe Hydrofast B100 delivers purity, convenience, and peace of mind in every sip.
Waterdrop - WD-WHF21-PBL 2 Stage Whole House Water Filter System, with Carbon and Sediment Filter Extra WD-RPFK Filters - Blue
223.98 USD
Highly Reduce Lead, PFAS and Heavy Metals, Taste, 5-Stage Filtration, WD-WHF21-PBL, 1" Inlet/Outlet
Waterdrop - WD-WHF21-PBL 2 Stage Whole House Water Filter System, with Carbon and Sediment Filter Extra WD-WF10PBL Filters - Blue
239.98 USD
Highly Reduce Lead, PFAS and Heavy Metals, Taste, 5-Stage Filtration, WD-WHF21-PBL, 1" Inlet/Outlet
Waterdrop - WD-PT-05B-L Water Filter Pitcher, 200-Gallon Long-Life, Extra PF-AL-3 Alkaline Filters - Blue
55.32 USD
Countertop NSF Certified Water Purifier, Replaces 6,400 Plastic Water Bottles a Year, Reduces Chlorine, PFOA/PFOS, 7-Cup, Blue
Waterdrop - K19-SFK Countertop Reverse Osmosis System Extra WD-K19RFFK Water Filter - White
345.99 USD
The Waterdrop K19-SFK is a BPA-free countertop reverse osmosis system with 7-stage filtration that reduces TDS, PFAS, chlorine, lead, and more while adding beneficial minerals such as potassium, calcium, sodium, and magnesium for healthier, better-tasting water. Tested by SGS for safety, it delivers pure hydration with a 3:1 pure-to-drain ratio, saving over 4000 plastic bottles annually. Its compact, installation-free design fits any countertop in kitchens, offices, bedrooms, or RVs, and the 170 oz tank provides enough water for a full day. With a smart screen, touch controls, adjustable water volumes, and a 12-month long-lasting composite filter, it ensures convenient, efficient, and sustainable water purification.
VEVOR - Whole House Water Filter System, 3-Stage Sediment, KDF, CTO 4.5" x 20" Home Water Purifier Filter Reduce Heavy Metal - Blue, White
292.9 USD
This 3-stage whole house water filter system efficiently removes sand, rust, odors, and harmful substances, purifying the entire homeβs water supply to improve water quality and protect appliances.
Waterdrop - G3P800 Reverse Osmosis System Extra WD-PT-05B-L Water Filter Pitcher - White
861.99 USD
The Waterdrop G3P800 is a tankless under sink reverse osmosis system delivering 800 GPD fast flow with a 3:1 pure-to-drain ratio, certified by NSF/ANSI 42, 53, 58, and 372 for safety and performance. Featuring 10-stage filtration tested by SGS, it effectively reduces TDS, PFAS, fluoride, heavy metals, salts, and other contaminants while providing a cup of purified water in just 5 seconds. Its smart faucet displays TDS levels and water quality at a glance, with a long-lasting LED light that activates automatically with water flow. With a stylish, space-saving design, the G3P800 consistently produces clean, safe water for large families without the need for a storage tank.
Waterdrop - G3P600 Reverse Osmosis System Extra WD-PT-05B-L Water Filter Pitcher - White
451.99 USD
The Waterdrop G3P600 is a tankless under sink reverse osmosis system with 8-stage filtration, certified by NSF/ANSI 42, 58, and 372, as well as FCC, EU, and UKCA standards. Tested by SGS, it effectively reduces TDS, PFAS, fluoride, heavy metals, salts, and other contaminants, delivering up to 600 GPD with a 2:1 pure-to-drain ratio. Its smart display faucet provides real-time TDS monitoring and filter life tracking, while the sleek tankless design saves 70% under sink space and allows quick 3-second filter changes without tools. This system requires under-sink electricity and offers fast, stable water flow ideal for daily drinking and cooking.
Waterdrop - G2P600 Reverse Osmosis System Extra WD-PT-05B-L Water Filter Pitcher - White
311.99 USD
The Waterdrop G2P600 is a tankless under sink reverse osmosis system with 7-stage filtration, NSF/ANSI 372 certification, and FCC listing. It delivers 600 GPD fast flow, filling a 200ml cup in just 8 seconds, making it ideal for families and small businesses. With a 2:1 pure-to-drain ratio, it saves up to 600% more water than traditional RO systems, while the compact tankless design ensures space efficiency. Featuring twist-and-pull filters for easy 3-second replacement and filter life indicators, the G2P600 offers reliable performance, simple installation, and cost-effective water purification.
Waterdrop - D6 Reverse Osmosis System Extra WD-D6RF Water Filter - Black
416.99 USD
The Waterdrop D6 is a 600 GPD tankless reverse osmosis system with 6-stage composite filtration that reduces TDS, PFAS, PFOA, PFOS, lead, chlorine, microplastics, salts, and more with 0.0001ΞΌm precision. Featuring a 2:1 pure-to-drain ratio, it provides a cup of water in 8 seconds while saving water and allowing wastewater reuse. The smart designer faucet displays real-time TDS and filter life, while the tankless design saves 70% under-sink space and prevents recontamination. FCC certified and mercury-free, the D6 offers quick DIY installation in 30 minutes and 2-second filter replacement, making it a convenient, efficient, and safe water purification solution.
Waterdrop - C1H Reverse Osmosis System Extra WD-C1RF Water Filter - Black
296 USD
ππ§π¬πππ§π ππ¨π & 6 Stage RO Filtration, NSF/ANSI 372 Certified, SGS Tested, Portable Pure Water Tank, 3:1 Pure to Drainππ§π¬πππ§π ππ¨π & 6 Stage RO Filtration, NSF/ANSI 372 Certified, SGS Tested, Portable Pure Water Tank, 3:1 Pure to Drain