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All Filters
Water Filters > Undersink Filters

Under-Sink Water Filters

Under-Sink Water Filters with Dedicated Filtration Faucet

Connects to 1/4" cold water supply line

3MDW301

NSF Certified

3M Aqua-Pure 3MDW301 Advanced Under-Sink Water Filter

List Price: $661.20

Our Price: $278.82

Save: $382.38!

Replace filter every 12 months

Culligan US-EZ-4

NSF Certified

Culligan US-EZ-4 Undersink Water Filter (Level 4 Premium Filtration)

List Price: $110.99

Our Price: $82.78

Save: $28.21!

Replace filter every 6 months

Faucet available in 20 finishes!

aquapure Complete

NSF Certified

3M Aqua-Pure AP Easy Complete Undersink Water Filter

List Price: $235.00

Our Price: $116.39

Save: $118.61!

Replace filter every 6-12 months

Faucet available in 19 finishes!

aquapure AP-DWS1000

Rated #1

Aqua-Pure AP-DWS1000 Undersink Water Filter

List Price: $504.00

Our Price: $289.24

Save: $214.76!

Replace filter every 6-12 months

Rated #1 by a leading consumer magazine!

Culligan US-EZ-3

NSF Certified

Culligan US-EZ-3 Undersink Water Filter (Level 3 Advanced Filtration)

List Price: $74.99

Our Price: $49.21

Save: $25.78!

Replace filter every 6 months

Faucet available in 20 finishes!

Culligan US-EZ-1

NSF Certified

Culligan US-EZ-1 Undersink Water Filter (Level 1 Basic Filtration)

List Price: $44.99

Our Price: $34.68

Save: $10.31!

Replace filter every 12 months

Faucet available in 20 finishes!

Inline Full-Flow Water Filters

Installed to your existing kitchen faucet

3MFF100

NSF Certified

3M Aqua-Pure 3MFF100 Inline Full Flow Undersink Water Filter

List Price: $402.59

Our Price: $173.96

Save: $228.63!

Replace filter every 12 months

Flow Rate: 2.5 gpm

aquapure CS-FF

NSF Certified

Aqua-Pure CS-FF/Cyst-FF Inline Full Flow Drinking Water Filter

List Price: $230.53

Our Price: $101.35

Save: $129.18!

Replace filter every 6-12 months

Flow Rate: 2.0 or 1.5 gpm

Culligan US-600A

NSF Certified

Culligan US-600A Undersink Water Filter with 3/8" Fittings

List Price: $39.99

Our Price: $30.55

Save: $9.44!

Replace filter every 12 months

Flow Rate: 0.6, 0.9, or 1.0 gpm

3M AP200

NSF Certified

3M Aqua-Pure AP200 Full Flow UnderSink Water Filter

List Price: $228.85

Our Price: $98.89

Save: $129.96!

Replace filter every 6 months

Culligan Replacement Cartridges

Culligan RC-EZ-4

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(3)

Culligan RC-EZ-4 Drinking Water Filter Replacement Cartridge (Level 4 Premium Filtration)

List Price: $59.99

Our Price: $39.48

Save: $20.51!

Replace every 6 months

Culligan RC-EZ-3

NSF Certified

Culligan RC-EZ-3 Drinking Water Filter Replacement Cartridge (Level 3 Advanced Filtration)

List Price: $29.99

Our Price: $22.66

Save: $7.33!

Replace every 6 months

Culligan RC-EZ-1

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Culligan RC-EZ-1 Drinking Water Filter Replacement Cartridge (Level 1 Basic Filtration)

List Price: $14.99

Our Price: $11.14

Save: $3.85!

Replace every 12 months

Culligan 1000R

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(4)

Culligan 1000R Filter Replacement Cartridge (Level 3 Advanced Filtration)

List Price: $28.99

Our Price: $26.33

Save: $2.66!

Replace every 6 months

Culligan 750R

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Culligan 750R Filter Replacement Cartridge (Level 1 Basic Filtration)

List Price: $19.99

Our Price: $16.73

Save: $3.26!

Replace every 12 months

Culligan D-40A

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Culligan D-40A Drinking Filter Replacement Cartridge (Level 4 Premium Filtration)

List Price: $35.99

Our Price: $32.00

Save: $3.99!

Replace every 6 months

Culligan D-30A

NSF Certified

Culligan D-30A Drinking Filter Replacement Cartridge (Level 2 Extra Filtration)

List Price: $17.99

Our Price: $15.49

Save: $2.50!

Replace every 12 months

Culligan D-20A

NSF Certified

Culligan D-20A Drinking Filter Replacement Cartridge (Level 1 Basic Filtration)

List Price: $10.99

Our Price: $8.14

Save: $2.85!

Replace every 12 months

Culligan D-10

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Culligan D-10A Drinking Filter Replacement Cartridge (2 Pack)

List Price: $14.95

Our Price: $9.19

Save: $5.76!

Replace every 3 months

Culligan D-250A

Culligan D-250A Drinking Filter Replacement Cartridge Set (Level 4 Premium Filtration)

List Price: $44.99

Our Price: $36.10

Save: $8.89!

Replace every 6 months

Aqua-Pure Replacement Cartridges

3MFF101

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(2)

3M Aqua-Pure 3MFF101 Filter Replacement Cartridge

List Price: $316.32

Our Price: $199.99

Save: $116.33!

Replace every 12 months

3MDW311

NSF Certified

Aqua-Pure 3MDW311 Filter Replacement Cartridge

List Price: $400.74

Our Price: $173.16

Save: $227.58!

Replace every 12 months

aquapure c-complete

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Aqua-Pure C-Complete Replacement Cartridge

List Price: $128.43

Our Price: $54.82

Save: $73.61!

Replace every 6-12 months

aquapure AP-DW8090

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Aqua-Pure AP-DW80/90 Replacement Cartridge

List Price: $221.63

Our Price: $107.74

Save: $113.89!

Replace every 6-12 months

aquapure c-cyst-ff

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Aqua-Pure C-Cyst-FF Replacement Cartridge

List Price: $147.41

Our Price: $63.69

Save: $83.72!

Replace every 6-12 months

For Cyst-FF Inline Drinking Water Filter

aquapure C-CS-FF

NSF Certified

Aqua-Pure C-CS-FF Replacement Cartridge

List Price: $89.90

Our Price: $40.35

Save: $49.55!

Replace every 6-12 months

For CS-FF Inline Drinking Water Filter

EP15 Everpure

NSF Certified

Aqua-Pure Branded EP15 Everpure Drinking Filter Replacement Cartridge

List Price: $109.17

Our Price: $54.99

Save: $54.18!

Replace every 6 months

EP25 Everpure

NSF Certified

Aqua-Pure Branded EP25 Everpure Drinking Filter Replacement Cartridge

List Price: $147.22

Our Price: $69.99

Save: $77.23!

Replace every 6 months

EP35R Everpure

NSF Certified

Aqua-Pure Branded EP35R Everpure Drinking Filter Replacement Cartridge

List Price: $175.78

Our Price: $89.99

Save: $85.79!

Replace every 6 months

Aqua-Pure AP217

NSF Certified

3M Aqua-Pure AP217 Replacement Cartridge

List Price: $140.06

Our Price: $59.06

Save: $81.00!

Replace every 6 months

Multipure Replacement Cartridges

Multipure CB6 Aquaversa

5 stars 4 stars 3 stars 2 stars 1 star
(15)

HydroGuard HDG-CB6-14 Multipure Aquaversa CB6 Compatible Filter

List Price: $69.95

Our Price: $26.13

Save: $43.82!

Pentek Replacement Cartridges

Pentek P-250

NSF Certified

Pentek P-250 / 155584-44 Filter Replacement Cartridge Set for US-1500

List Price: $28.61

Our Price: $20.32

Save: $8.29!

Replace every 6 months

Pentek P-250A

NSF Certified

5 stars 4 stars 3 stars 2 stars 1 star
(1)

Pentek P-250A / 155832-44 Filter Replacement Cartridge Set for US-1000

List Price: $28.61

Our Price: $20.32

Save: $8.29!

Replace every 6 months

Pentek QC10-CBRR

NSF Certified

Pentek QC10-CBRR / 155785-43 Enhanced Carbon Block Replacement Filter

List Price: $29.54

Our Price: $23.75

Save: $5.79!

Replace every 6 months

Pentek MG-10MCB

NSF Certified

Pentek 255420-43 / MG-10MCB MicroGuard Carbon Block Filter Cartridge

List Price: $77.99

Our Price: $58.30

Save: $19.69!

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