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FaucetsMore Top BrandsResold Home ImprovementAir QualityAir ToolsBathroom Cabinets & FixturesBathroom PlumbingBrackets and Angle IronsDimmers, Switches, and Wall PlatesElectrical ToolsEvaporative Coolers and PartsGuttering & DrainageHand ToolsKitchen Fixtures and MaterialsKitchen PlumbingKrausMechanics ToolsPersonal PreparednessPipes, Fittings & AccessoriesPlug AdaptersProjectsShop Plumbing by FixtureThermostatsUtility Sinks & FaucetsValves & Valve RepairWater DispensersWater FiltersWater Filtration & Water SoftenersWater Heaters, Pumps & TanksWater JugsWildfire Prep
Ro Purifiers(186)
Uses item details. Price when purchased online
APEC Water ROES-50, 5-Stage Under-Sink Reverse Osmosis Drinking Water Filter System, 50 GPD, WQA Certified, Removes 99% Contaminants $230.99
Sponsored
$23099
current price $230.99APEC Water ROES-50, 5-Stage Under-Sink Reverse Osmosis Drinking Water Filter System, 50 GPD, WQA Certified, Removes 99% Contaminants
2174.8 out of 5 Stars. 217 reviews
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iSpring RCC7AK 6-Stage Alkaline RO Water Filtration System w/F4AK 6-Month Replacement Filter Pack, NSF Certified, Under Sink Drinking Water Purifier Bundle From $234.99
Sponsored
From$23499
iSpring RCC7AK 6-Stage Alkaline RO Water Filtration System w/F4AK 6-Month Replacement Filter Pack, NSF Certified, Under Sink Drinking Water Purifier Bundle
1884.8 out of 5 Stars. 188 reviews
iSpring RCC7P-AK 6-Stage Reverse Osmosis System, Under Sink Alkaline RO Filter with Pump, Faucet, Slide-Out Mounting Kit, TDS Pen, Fridge/Ice Maker Kit, Filter Life Reminder From $377.99
Sponsored
From$37799
iSpring RCC7P-AK 6-Stage Reverse Osmosis System, Under Sink Alkaline RO Filter with Pump, Faucet, Slide-Out Mounting Kit, TDS Pen, Fridge/Ice Maker Kit, Filter Life Reminder
624.8 out of 5 Stars. 62 reviews
iSpring RCC7 Under Sink RO Water Filtration System w/F4 6-Month Filter Set & ICEK Ice Maker Installation Kit, NSF Certified, Complete Bundle From $220.96
Sponsored
From$22096
iSpring RCC7 Under Sink RO Water Filtration System w/F4 6-Month Filter Set & ICEK Ice Maker Installation Kit, NSF Certified, Complete Bundle
1274.8 out of 5 Stars. 127 reviews
Reverse Osmosis Water Filter System SimPure Ro Water Filtration System, 75GPD | 5 Stage | Reduce TDS | Under Sink | Home Kitchen $125.99
$12599
current price $125.99Reverse Osmosis Water Filter System SimPure Ro Water Filtration System, 75GPD | 5 Stage | Reduce TDS | Under Sink | Home Kitchen
294.3 out of 5 Stars. 29 reviews
VonWater 528Gallon Countertop Reverse Osmosis Water Filter System, 7 Stage RO Purifier with UV, 3:1 Pure to Drain Water Filtration System $229.99
$22999
current price $229.99VonWater 528Gallon Countertop Reverse Osmosis Water Filter System, 7 Stage RO Purifier with UV, 3:1 Pure to Drain Water Filtration System
74.4 out of 5 Stars. 7 reviews
Garvee No Installation RO Water Filter 600GPD Reverse Osmosis Water Filter System Countertop Purifier with Smart Faucet & Real-Time TDS Display From $169.19
From$16919
Garvee No Installation RO Water Filter 600GPD Reverse Osmosis Water Filter System Countertop Purifier with Smart Faucet & Real-Time TDS Display
Best seller DREO Reverse Osmosis Water Filter Countertop, 7-Stage RO Water Filtration System, Installation-Free, Reduce TDS, Water Filter Pitcher for Home, Kitchen, 3:1 Pure to Drain, WF511 Upgraded $299.99
$29999
current price $299.99DREO Reverse Osmosis Water Filter Countertop, 7-Stage RO Water Filtration System, Installation-Free, Reduce TDS, Water Filter Pitcher for Home, Kitchen, 3:1 Pure to Drain, WF511 Upgraded
234.5 out of 5 Stars. 23 reviews
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SimPure Countertop Reverse Osmosis Water Purifier,5stage RO Water Filtration System with Glass Pitcher, No Installation, 4: 1 Pure to Drain,and Additional Set of Replacement Filters.Improves Taste $399.99
$39999
current price $399.99SimPure Countertop Reverse Osmosis Water Purifier,5stage RO Water Filtration System with Glass Pitcher, No Installation, 4: 1 Pure to Drain,and Additional Set of Replacement Filters.Improves Taste
Waterdrop N1 Countertop Reverse Osmosis System, 4-Stage Countertop Water Filtration System, Countertop RO Water Filter System, BPA Free, No Installation Required $219.00
$21900
current price $219.00Waterdrop N1 Countertop Reverse Osmosis System, 4-Stage Countertop Water Filtration System, Countertop RO Water Filter System, BPA Free, No Installation Required
45 out of 5 Stars. 4 reviews
PureDrop RTW5U Reverse Osmosis RO Water Filter System with UV Filter, Ultraviolet Under Sink RO Water Filtration System, 6 Stage UV Under Sink RO Water Filter with Faucet, TDS Reduction, White $259.99
Sponsored
$25999
current price $259.99PureDrop RTW5U Reverse Osmosis RO Water Filter System with UV Filter, Ultraviolet Under Sink RO Water Filtration System, 6 Stage UV Under Sink RO Water Filter with Faucet, TDS Reduction, White
iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System and Water Filter for Sink with Alkaline Remineralization, Booster Pump and UV Ultraviolet Filter, White $482.99
Sponsored
$48299
current price $482.99iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System and Water Filter for Sink with Alkaline Remineralization, Booster Pump and UV Ultraviolet Filter, White
354.8 out of 5 Stars. 35 reviews
Reverse Osmosis Replacement Filter Set, SimPure RO Water Filter Cartridge Kit, 75 GPD | 5 Stage | 5pcs From $38.85
From$3885
Reverse Osmosis Replacement Filter Set, SimPure RO Water Filter Cartridge Kit, 75 GPD | 5 Stage | 5pcs
1344.3 out of 5 Stars. 134 reviews
VonWater CT910 Countertop Reverse Osmosis Water Filter System, 7-Stage RO Water Filtration System, 528 Gallons Water Purifier, NSF/ANSI 372, Reduce TDS PFAS, No Installation $229.99
$22999
current price $229.99VonWater CT910 Countertop Reverse Osmosis Water Filter System, 7-Stage RO Water Filtration System, 528 Gallons Water Purifier, NSF/ANSI 372, Reduce TDS PFAS, No Installation
84.1 out of 5 Stars. 8 reviews
VonWater Countertop Reverse Osmosis Water Filter System with Cold & Instant Hot, 7 Stage RO Water Filtration, Reduce TDS, PFAS $399.00
$39900
current price $399.00VonWater Countertop Reverse Osmosis Water Filter System with Cold & Instant Hot, 7 Stage RO Water Filtration, Reduce TDS, PFAS
VonWater CT910GH Reverse Osmosis Water Filter Countertop, 3S Instant Hot RO Water Filtration System, 7-Stage Water Purifier Removable Pitcher, NSF/ANSI 372, Reduce TDS PFAS, No Installation $259.99 Was $299.99
Now$25999
current price Now $259.99, Was $299.99$299.99
VonWater CT910GH Reverse Osmosis Water Filter Countertop, 3S Instant Hot RO Water Filtration System, 7-Stage Water Purifier Removable Pitcher, NSF/ANSI 372, Reduce TDS PFAS, No Installation
34.3 out of 5 Stars. 3 reviews
PureDrop RTW5AK Reverse Osmosis Alkaline Water Filtration System, pH+ Alkaline Remineralization RO Water Filter System Under Sink, 6 Stage Under Sink RO Water Filter with Faucet, TDS Reduction $179.99
$17999
current price $179.99PureDrop RTW5AK Reverse Osmosis Alkaline Water Filtration System, pH+ Alkaline Remineralization RO Water Filter System Under Sink, 6 Stage Under Sink RO Water Filter with Faucet, TDS Reduction
iSpring RCC7AK, NSF Certified 6-Stage Reverse Osmosis System, 75 GPD, Alkaline pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation From $234.99
From$23499
iSpring RCC7AK, NSF Certified 6-Stage Reverse Osmosis System, 75 GPD, Alkaline pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation
1884.8 out of 5 Stars. 188 reviews
VonWater 800GPD Reverse Osmosis Water Filter System, Under Sink RO Filtration System, 2:1 Pure to Drain, 800GPD Tankless RO Water Filtration System, Reduce TDS, NSF/ANSI 372 Listed $149.00
$14900
current price $149.00VonWater 800GPD Reverse Osmosis Water Filter System, Under Sink RO Filtration System, 2:1 Pure to Drain, 800GPD Tankless RO Water Filtration System, Reduce TDS, NSF/ANSI 372 Listed
15 out of 5 Stars. 1 reviews
VonWater Cold & Instant Hot Countertop Reverse Osmosis Water Filter System, 528Gallon RO Water Purifier with Portable Pitcher, 3:1 Pure to Drain, 7 Stage RO Dispenser, NSF/ANSI 372&42&58 Standard $399.00
$39900
current price $399.00VonWater Cold & Instant Hot Countertop Reverse Osmosis Water Filter System, 528Gallon RO Water Purifier with Portable Pitcher, 3:1 Pure to Drain, 7 Stage RO Dispenser, NSF/ANSI 372&42&58 Standard
iSpring RCC7P 5-stage Reverse Osmosis Water Filter RO Filtration System with Boost Pump $313.95 $313.95/count
Sponsored
$31395
current price $313.95$313.95/count
iSpring RCC7P 5-stage Reverse Osmosis Water Filter RO Filtration System with Boost Pump
385 out of 5 Stars. 38 reviews
iSpring RCC7AK-UV, NSF Certified 7-Stage Under Sink Reverse Osmosis Water Filtration System, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation $330.99
Sponsored
$33099
current price $330.99iSpring RCC7AK-UV, NSF Certified 7-Stage Under Sink Reverse Osmosis Water Filtration System, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation
294.8 out of 5 Stars. 29 reviews
Express Water Alkaline Reverse Osmosis Water Filtration System 10 Stage RO Mineralizing Purifier Mineral, pH +, Antioxidant Under Sink Water Filter with Remineralization 50 GDP $209.99
$20999
current price $209.99Express Water Alkaline Reverse Osmosis Water Filtration System 10 Stage RO Mineralizing Purifier Mineral, pH +, Antioxidant Under Sink Water Filter with Remineralization 50 GDP
2064.9 out of 5 Stars. 206 reviews
Waterdrop WD-A2 Countertop Reverse Osmosis System, Hot and Cold RO System, Portable Pure Water Tank, Bottleless Water Cooler, 6 Temperature Settings, Hot Cold Room Water, 3:1 Pure to Drain $499.00
$49900
current price $499.00Waterdrop WD-A2 Countertop Reverse Osmosis System, Hot and Cold RO System, Portable Pure Water Tank, Bottleless Water Cooler, 6 Temperature Settings, Hot Cold Room Water, 3:1 Pure to Drain
154.7 out of 5 Stars. 15 reviews
VonWater 600GPD Tankless Reverse Osmosis Water Filter System, 2:1 Pure to Drain Under Sink RO Water Filtration System $139.00
$13900
current price $139.00VonWater 600GPD Tankless Reverse Osmosis Water Filter System, 2:1 Pure to Drain Under Sink RO Water Filtration System
APEC ULTIMATE RO-PH90 Top Tier Supreme Certified Alkaline Mineral pH+ High Output 90 GPD 6-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System $409.99
$40999
current price $409.99APEC ULTIMATE RO-PH90 Top Tier Supreme Certified Alkaline Mineral pH+ High Output 90 GPD 6-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System
1064.9 out of 5 Stars. 106 reviews
AquaTru Classic Countertop Reverse Osmosis Water Purifier, 4-Stage Filtration $475.00
$47500
current price $475.00AquaTru Classic Countertop Reverse Osmosis Water Purifier, 4-Stage Filtration
22814.6 out of 5 Stars. 2281 reviews
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Waterdrop X8-Alkaline Mineral pH+ Tankless Reverse Osmosis System, NSF/ANSI 42&58&372 Certified, 800 GPD RO Water Filter, 10-Stage Filtration UnderSink RO System, 2:1 Pure to Drain, BPA Free $799.00
$79900
current price $799.00Waterdrop X8-Alkaline Mineral pH+ Tankless Reverse Osmosis System, NSF/ANSI 42&58&372 Certified, 800 GPD RO Water Filter, 10-Stage Filtration UnderSink RO System, 2:1 Pure to Drain, BPA Free
55 out of 5 Stars. 5 reviews
Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fast Flow, NSF/ANSI 42 & 53 & 58 & 372 Certified, 3:1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier, Smart Faucet $999.00
$99900
current price $999.00Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fast Flow, NSF/ANSI 42 & 53 & 58 & 372 Certified, 3:1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier, Smart Faucet
1254.9 out of 5 Stars. 125 reviews
Geekpure 5-Stage Reverse Osmosis Water Filter System-75GPD Under Sink RO system $145.99
$14599
current price $145.99Geekpure 5-Stage Reverse Osmosis Water Filter System-75GPD Under Sink RO system
1424.4 out of 5 Stars. 142 reviews
iSpring RO600ORB Tankless RO Reverse Osmosis Water Filtration System, 600 GPD Fast Flow, Oil Rubbed Black Faucet, 2.5:1 Pure to Drain Ratio $471.99
Sponsored
$47199
current price $471.99iSpring RO600ORB Tankless RO Reverse Osmosis Water Filtration System, 600 GPD Fast Flow, Oil Rubbed Black Faucet, 2.5:1 Pure to Drain Ratio
iSpring RO500-BN, NSF Certified Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow, Brushed Nickel Faucet, 2:1 Pure to Drain Ratio, White $625.06
Sponsored
$62506
current price $625.06iSpring RO500-BN, NSF Certified Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow, Brushed Nickel Faucet, 2:1 Pure to Drain Ratio, White
594.8 out of 5 Stars. 59 reviews
AquaTru Carafe Countertop Water Purifier System, Smart Alkaline 4-Stage Reverse Osmosis, 14x7.5x13 in., 1-Pack $395.00
$39500
current price $395.00AquaTru Carafe Countertop Water Purifier System, Smart Alkaline 4-Stage Reverse Osmosis, 14x7.5x13 in., 1-Pack
14564.6 out of 5 Stars. 1456 reviews
SimPure Under Sink Water Filter System NSF Certified 6 Stage 100GPD RO System with Faucet and Tank & Extra 1 Pack Reverse Osmosis Membrane
SimPure Under Sink Water Filter System NSF Certified 6 Stage 100GPD RO System with Faucet and Tank & Extra 1 Pack Reverse Osmosis Membrane
74.6 out of 5 Stars. 7 reviews
Clearance Under-Sink Tankless Reverse Osmosis Water Filter, Reverse Osmosis System, 600 GPD Water Filter, 2:1 Pure to Drain/Under Sink RO System/7 Stage Filtration for Home Office Was $159.34
Under-Sink Tankless Reverse Osmosis Water Filter, Reverse Osmosis System, 600 GPD Water Filter, 2:1 Pure to Drain/Under Sink RO System/7 Stage Filtration for Home Office
15 out of 5 Stars. 1 reviews
iSpring RCC2AK-UV, Upgraded 200 GPD, UV pH+ Reverse Osmosis System, 7-Stage RO Water Filtration System with Alkaline and Ultraviolet Filter, Ideal for Large Households and Off $437.99
$43799
current price $437.99iSpring RCC2AK-UV, Upgraded 200 GPD, UV pH+ Reverse Osmosis System, 7-Stage RO Water Filtration System with Alkaline and Ultraviolet Filter, Ideal for Large Households and Off
114.6 out of 5 Stars. 11 reviews
Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fas1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier,with Extra WD-G3-N1CF $876.99 Was $1,099.99
Now$87699
current price Now $876.99, Was $1,099.99$1,099.99
Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fas1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier,with Extra WD-G3-N1CF
1194.9 out of 5 Stars. 119 reviews
Portable Mini RO Reverse Osmosis Water Filter System 4 Stage 100 GPD MADE IN USA $94.99
$9499
current price $94.99Portable Mini RO Reverse Osmosis Water Filter System 4 Stage 100 GPD MADE IN USA
23.5 out of 5 Stars. 2 reviews
AquaTru Carafe Countertop Water Purifier System with Glass Carafe, 4-Stage Reverse Osmosis, 14x7.5x13 in., 1-Pack $375.00
$37500
current price $375.00AquaTru Carafe Countertop Water Purifier System with Glass Carafe, 4-Stage Reverse Osmosis, 14x7.5x13 in., 1-Pack
21484.6 out of 5 Stars. 2148 reviews
Waterdrop WD-T3-C Reverse Osmosis Water Filter,450GPD,8-Stage Under Sink RO Water Filter, 450G Tankless Water Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required $279.99 Was $309.99
Now$27999
current price Now $279.99, Was $309.99$309.99
Waterdrop WD-T3-C Reverse Osmosis Water Filter,450GPD,8-Stage Under Sink RO Water Filter, 450G Tankless Water Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required
1654.9 out of 5 Stars. 165 reviews
Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fast Flow, NSF/ANSI 42 & 53 & 58 & 372 Certified, 3:1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier, Smart Faucet $999.00
$99900
current price $999.00Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fast Flow, NSF/ANSI 42 & 53 & 58 & 372 Certified, 3:1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier, Smart Faucet
1984.8 out of 5 Stars. 198 reviews
Waterdrop X12-Alkaline Mineral pH+ Reverse Osmosis System, NSF/ANSI 42&58&372 Certified, 1200 GPD RO Water Filter, 11-Stage Filtration Tankless RO System, 3:1 Pure to Drain, UnderSink, BPA Free $1,299.00
$1,29900
current price $1,299.00Waterdrop X12-Alkaline Mineral pH+ Reverse Osmosis System, NSF/ANSI 42&58&372 Certified, 1200 GPD RO Water Filter, 11-Stage Filtration Tankless RO System, 3:1 Pure to Drain, UnderSink, BPA Free
574.9 out of 5 Stars. 57 reviews
Costway 5-Stage RO + PPC Water Filtration System with UV Light, 4:1 Pure to Drain Portable $149.99
$14999
current price $149.99Costway 5-Stage RO + PPC Water Filtration System with UV Light, 4:1 Pure to Drain Portable
43.5 out of 5 Stars. 4 reviews
Express Water Alkaline Ultraviolet Reverse Osmosis Water Filtration System - 11 Stage RO UV Mineralizing Alkaline Purifier with Faucet and Tank - Under Sink Filter Mineral, pH + Antioxidant - 100 GPD $298.99
$29899
current price $298.99Express Water Alkaline Ultraviolet Reverse Osmosis Water Filtration System - 11 Stage RO UV Mineralizing Alkaline Purifier with Faucet and Tank - Under Sink Filter Mineral, pH + Antioxidant - 100 GPD
1744.9 out of 5 Stars. 174 reviews
Waterdrop G5P700A Alkaline Mineral pH+ Reverse Osmosis Water Filter, NSF/ANSI 372 Certified, 700G Reverse Osmosis System, 8 Stage RO Water Filtration System, 2:1 Pure to Drain, Smart LED Faucet $359.99 Was $409.99
Now$35999
current price Now $359.99, Was $409.99$409.99
Waterdrop G5P700A Alkaline Mineral pH+ Reverse Osmosis Water Filter, NSF/ANSI 372 Certified, 700G Reverse Osmosis System, 8 Stage RO Water Filtration System, 2:1 Pure to Drain, Smart LED Faucet
1824.9 out of 5 Stars. 182 reviews
SimPure UV Sterilizer Reverse Osmosis System, Tankless RO Under Sink Water Filter System, 8 Stage | NSF/ANSI 58 Certified | 400 GPD | BPA Free | Near 0 TDS | 1.5:1 Pure to Drain Was $199.99
SimPure UV Sterilizer Reverse Osmosis System, Tankless RO Under Sink Water Filter System, 8 Stage | NSF/ANSI 58 Certified | 400 GPD | BPA Free | Near 0 TDS | 1.5:1 Pure to Drain
184 out of 5 Stars. 18 reviews
Reverse Osmosis Water Filter for Kitchen, RO Water Filter System with Advanced Filtration, 4:1 Pure to Drain, Under Sink Water Filter with Fast Flow & Space-Saving Design See price in cart
See price in cart
current price See price in cartReverse Osmosis Water Filter for Kitchen, RO Water Filter System with Advanced Filtration, 4:1 Pure to Drain, Under Sink Water Filter with Fast Flow & Space-Saving Design
iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System and Water Filter for Sink with Alkaline Remineralization, Booster Pump and UV Ultraviolet Filter, White $482.99
$48299
current price $482.99iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System and Water Filter for Sink with Alkaline Remineralization, Booster Pump and UV Ultraviolet Filter, White
354.8 out of 5 Stars. 35 reviews
Countertop Reverse Osmosis Water Filtration System 4 Stage RO Water Filter with Faucet Simple Set Up Faucet Filter Express Water $164.99
$16499
current price $164.99Countertop Reverse Osmosis Water Filtration System 4 Stage RO Water Filter with Faucet Simple Set Up Faucet Filter Express Water
754.8 out of 5 Stars. 75 reviews
Waterdrop G5P700A Alkaline Mineral pH+ Reverse Osmosis System, 700GPD RO Water Filter, 8 Stage Filtration, NSF/ANSI 372 Certified, 2:1 Pure to Drain, Smart LED Faucet, with Extra Filter $347.98 Was $439.99
Now$34798
current price Now $347.98, Was $439.99$439.99
Waterdrop G5P700A Alkaline Mineral pH+ Reverse Osmosis System, 700GPD RO Water Filter, 8 Stage Filtration, NSF/ANSI 372 Certified, 2:1 Pure to Drain, Smart LED Faucet, with Extra Filter
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