Products
Products
Brands
Popular Brands
Products
Events
Featured
Hotels

Replacement Under-Sink Water Filters

Categories

Replacement Under-Sink Water Filters

Price

Brands

iSpring F3 3-pcs Universal Replacement Filter Set for for Water Filters with standard 10-in housings (3pcs: Sediment, Granular Activated Carbon, CTO Carbon Block. NO membrane)

$17.06

View Deals
Culligan SCHWH-5 Univeral Fit Whole Home Carbon Water Filter - Replacement Filter - Fits Inside Most Standard Size Whole Home Filter Systems

$8.86

View Deals
iSpring F19K75 2-Year Replacement Filter Set for 6-Stage Alkaline Reverse Osmosis Water Filter, Fits iSpring RCC7AK RCC7PAK (19pcs 4SED 4GAC 4CTO 2T33 1MC7 4AK)

$139.99

View Deals
iSpring RCC1UP-AK - WQA GOLD SEAL - 7-Stage 100GPD Reverse Osmosis Water Filter System

$500.00

Avg. Savings $102.85
Universal 4-Stage Under Sink Reverse Osmosis Replacement Filter Kit

$39.99

View Deals
InSinkErator F-1000 Replacement Filter, 1-Pack

$49.00

Avg. Savings $23
Watts 7-PK RO Filters Premier 1-Year 5-Stage Reverse Osmosis Replacement Filter Kit

$27.99

View Deals
Aqua-Pure AP431 Scale Inhibition Replacement Cartridge, Easy Change High Capacity Water Filter for AP430SS

$53.82

View Deals
American Plumber W30W Whole House Sediment Filter Cartridge (2-Pack)

$21.72

View Deals
APEC Water Systems FILTER-SET APEC Water Ultimate High Capacity Pre-Filter Set

$35.96

View Deals
Icepure ICP-PPL10BB Big Blue Pleated Sediment Compatible with DuPont WFHDC3001,GE FXHSC, Culligan R50-BBSA, Pentek R50-BB Whole House 10" x 4.5" Sediment Filter 2Pack

$25.49

View Deals
Culligan RFC-BBSA Premium Heavy Duty Sediment Replacement Cartridge

$23.08

Avg. Savings $1.09
4-PACK Of 5 Micron 10"x4.5" Sediment Water Filter Whole House Big Blue by Aquaboon

$44.79

View Deals
iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20"

$51.49

View Deals
iSpring F7-GAC 1-Year Replacement Filter Set for 5-stage RO Filters, Fits iSpring RCC7, RCC7P, RCC7U, RCC1P, RCC1UP, RCW5 (7pcs 2SED 2GAC 2CTO 1T33, no membrane)

$36.96

View Deals
No-Mess Reverse Osmosis Drinking Water Filtration System

$219.00

Avg. Savings $20.58
iSpring FP25B NSF Certified 5-micron Universal Sediment Filter Cartridges with Multi-layer Gradient Design, 20" x 4.5"

$27.60

View Deals
Aquasana AQ-5300+R 3-Stage Max Flow Under Sink Water Filter Replacements

$87.39

View Deals
iSpring FP15B Big Blue Whole House Water Filter Sediment Filter, 4.5" x 10"

$12.72

View Deals
iSpring F28K75 3-Year Replacement Filter Set for 6-Stage Alkaline Reverse Osmosis Water Filter, Fits iSpring RCC7AK RCC7PAK (28pcs 6SED 6GAC 6CTO 3T33 1MC7 6AK)

$160.60

View Deals
InSinkErator F-2000 Replacement Filter Plus, 1-Pack

$80.99

Avg. Savings $9.52
Pentek EPM-10 Carbon Block Filter Cartridge, 9-3/4" x 2-7/8", 10 Microns

$17.96

View Deals
Culligan RC-EZ-3 EZ-Change Replacement Cartridges, 500 Gallon

$43.96

Avg. Savings $6.55
Everpure H-300 Water Filter Replacement Cartridge (EV9270-72 or EV9270-71)

$196.46

Avg. Savings $73.33
Pureteck RO Filter Set with RO Membrane, 75 GPD Membrane, for 4 Stage System | Replacement Membrane and Filters

$38.00

View Deals
GE FXUTC Drinking Water System Replacement Filter

$14.92

View Deals
Brondell H2O+ Circle RO Membrane Replacement Filter

$89.99

View Deals
Pentek P5 Spun Polypropylene Filter Cartridge, 9-3/4" x 2-3/8", 5 Microns

$4.44

View Deals
EcoPure ECOROM9 No-Mess Reverse Osmosis Drinking Water Filtration System Membrane

$64.83

View Deals
EcoPure ECOROF9 No-Mess Reverse Osmosis Drinking Water Filtration System Filter Set

$45.99

View Deals
WHIRLPOOL Standard Capacity Whole House Filtration Replacement Filter (2 Pack) WHKF-GD05

$15.29

View Deals
Pentek DGD-2501-20 Spun Polypropylene Filter Cartridge, 20" x 4-1/2"

$34.31

View Deals
OMNIFilter RS5-DS Universal Whole House Filter Cartridge 2 Pack

$16.77

View Deals
InSinkErator F-1000S Water Filtration System

$109.00

Avg. Savings $52.34
Pentek 158008 3/8" NPT Slim Line 10" Clear Housing

$22.77

View Deals
Watts Premier 105311 RO-4 RO-Pure UF3 Sediment Filter

$23.64

Avg. Savings $9.66
Express Water Reverse Osmosis Replacement Filter Cartridges Post Inline Carbon + Granular Activated Carbon + Carbon CTO + Sediment 21 Pcs Total 3 Year Supply

$64.48

View Deals
iSpring 7-Stage Alkaline Mineral UV RO System 1-Year Supply Filter Pack #F10KU, Fits RCC7AK-UV RCC1UP-AK

$75.10

View Deals
Elkay 51300C_12PK Pack of 12 Replacement Filters for EZH2O Bottle Filling Stations

$1,139.99

View Deals
2-PACK Of 5 Micron Big Blue 10" x 4.5" Pleated Washable Sediment Water Filter by Aquaboon

$23.79

View Deals
3M Filtrete 3US-PS01 Undersink Water Filtration System

$59.99

Avg. Savings $5.51
Pura Platinum QCRO Complete Replacement Filter Kit 50 GPD

$114.00

View Deals
AQUACREST F-201R Replacement for Insinkerator F-201R Filter Cartridge for Hot Water Dispenser

$39.99

View Deals
Pentek GS-10CAL/RO-B Inline Filter - GAC/Calcite

$21.51

View Deals
Pentek EPM-20BB Carbon Block Filter Cartridge, 20" x 4-5/8", 10 Microns

$63.12

View Deals
Whirlpool Large Capacity Whole House Filtration Replacement Filter - WHKF-GD25BB, Packaging May Vary

$29.99

View Deals
GE Profile FQROMF Reverse Osmosis Replacement Membrane

$89.95

View Deals

Capital One Shopping gets you better offers, automatically applies coupon codes at checkout, and lets you know when prices drop on products you've viewed and purchased.

© 2026 Capital One Shopping

Privacy PolicyTerms of ServiceHelp CenterAdvertise With UsCapital One
Get Capital One ShoppingResearchSitemap

© 2026 Capital One Shopping

Capital One Shopping gets you better offers and automatically applies coupon codes at checkout.

Privacy PolicyTerms of ServiceHelp CenterAdvertise With UsResearchCapital OneSitemap