10 bestUndersink Water Filtersof September 2025
112M consumers helped this year.
17% off
1

Waterdrop 15UA Under Sink Water Filter System, Reduces Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Direct Connect to Kitchen Faucet, NSF/ANSI 42 Certified, 16000 Gallons, USA Tech
Waterdrop
Editor’s Choice

9.7
2

3M Aqua-Pure Under Sink Full Flow Drinking Replacement Water Filter 3MFF101, For Aqua-Pure System 3MFF100, Sanitary Quick Change, Reduces Particulates, Chlorine Taste and Odor, Cyst, Lead, Select VOCs
Aqua-Pure

9.4
3

APEC Water Systems FILTER-MAX45 US Made 50 GPD Complete Replacement Set for Ultimate Series Reverse Osmosis Water Filter System Stage 1-5
APEC WATER

9.1
4

Aquasana AQ-5200R 2-Stage Under Counter Replacement Filter Cartridges, Red and Yellow, 2.5 x 2.5 x 5
Aquasana

8.8
6% off
5

Home Master ISetTMA8 Artesian and HydroGardener Replacement Water Filter Change Set, White
Home Master

8.5
OtherUp to 26% off
13% off
6

iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + Carbon + Carbon (Newest Version)
iSpring

8.2
7

3M Aqua-Pure Under Sink Replacement Water Filter AP-DW80/90, For Aqua-Pure AP-DWS1000, Reduces Particulate, Chlorine Taste and Odor, Lead, Cysts, VOCs, MTBE
Aqua-Pure

7.9
8

Aquasana Replacement Filter Cartridges for 3-Stage Under Sink Water Filtration System - Filters 99% Of Chlorine - 3 Count - AQ-5300R
Aquasana

7.6
7% off
9

APEC Water Systems FILTER-MAX-ES50 50 GPD Essence 5 Stage High Capacity Filter Set
APEC WATER

7.3
22% off
10

APEC Water Systems Filter-Set Ultimate High Capacity Pre-Filter Set
APEC WATER

7.0
More products we considered
Up to 11% off

Waterdrop Reverse Osmosis System, Instant Hot Water Dispenser, 600 GPD, Reduce PFAS, Tankless, 2:1 Pure to Drain, Under Sink, TDS Reduction, Smart LED Faucet, Hot and Cold Water Dispenser Faucet

Waterdrop Whole House Water Filter System, with Carbon Filter and Sediment Filter, 5-Stage Filtration, Highly Reduce Lead, Chlorine, Odor and Taste, 2-Stage 5 Micron WD-WHF21-PG, 1" Inlet/Outlet

Waterdrop TSU 0.01μm Ultra-Filtration Under Sink Water Filter System, 3-Stage High Capacity, USA Tech, Smart Panel, No Waste Water, 2 Years Lifetime

Waterdrop TSA 3-Stage Under Sink Water Filter, Water Filtration System Under Sink System, Direct Connect to Home Faucet, NSF/ANSI 42 Certified Element, USA Tech

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