Collection: Sink Under-Sink Filters

Welcome to AQUA GUARD.

Water is the most essential element of daily life, yet every household, faucet, and appliance encounters entirely different water conditions and impurities. At AQUA GUARD, we believe that one-size-fits-all filtration is never enough; instead, we engineer targeted, high-performance water treatment solutions specifically designed for every unique scenario. From high-purity kitchen drinking systems and skin-soothing shower filters to heavy-duty whole-house sediment defenses and portable outdoor purifiers, we provide an all-encompassing lineup that ensures every drop of water in your space is safe, fresh, and flawlessly clear.

2-Pack PVDF Ultrafiltration Membrane Water Filter Cartridge, Flat End UF Filter Replacement, Fit for 10" Housings, Ideal for Whole House and Under Sink Water

2-Pack PVDF Ultrafiltration Membrane Water Filter Cartridge, Flat End UF Filter Replacement, Fit for 10" Housings, Ideal for Whole House and Under Sink Water

Regular price $96.56 USD

Regular price Sale price $96.56 USD
CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 4.5)

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 4.5)

Regular price $87.98 USD

Regular price Sale price $87.98 USD
CTO20 5 Micron 2.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 2.5)

CTO20 5 Micron 2.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 2.5)

Regular price $43.98 USD

Regular price Sale price $43.98 USD
PureDrop PDR-16KPCB Under Sink Composite Water Filter

PureDrop PDR-16KPCB Under Sink Composite Water Filter

Regular price $134.16 USD

Regular price Sale price $134.16 USD
CTO20BB 5 Micron 4.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 4.5)

CTO20BB 5 Micron 4.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 4.5)

Regular price $87.98 USD

Regular price Sale price $87.98 USD
PureDrop PDR-16KUF2 Under Sink Ultra Filtration Water Filter

PureDrop PDR-16KUF2 Under Sink Ultra Filtration Water Filter

Regular price $275.18 USD

Regular price Sale price $275.18 USD
CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 2.5)

CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 2.5)

Regular price $65.98 USD

Regular price Sale price $65.98 USD
Express Water – 1 Pack Activated Carbon Block ACB Water Filter Replacement – 5 Micron, 10 inch Filter – Under Sink and Reverse Osmosis System…

Express Water – 1 Pack Activated Carbon Block ACB Water Filter Replacement – 5 Micron, 10 inch Filter – Under Sink and Reverse Osmosis System…

Regular price $47.06 USD

Regular price Sale price $47.06 USD
PureDrop PDR-16KCU Under Sink Ultra Filtration Water Filter

PureDrop PDR-16KCU Under Sink Ultra Filtration Water Filter

Regular price $197.98 USD

Regular price Sale price $197.98 USD
CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 4.5)

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 4.5)

Regular price $131.98 USD

Regular price Sale price $131.98 USD
100GPD RO Membrane Filter Replacement with Reverse Osmosis Membrane Housing, Wrench, 1/4" Quick-Connect Fitting, Check Valve, Fit Under Sink RO Home Drinking Water Filter Filtration Purifier System

100GPD RO Membrane Filter Replacement with Reverse Osmosis Membrane Housing, Wrench, 1/4" Quick-Connect Fitting, Check Valve, Fit Under Sink RO Home Drinking Water Filter Filtration Purifier System

Regular price $49.61 USD

Regular price Sale price $49.61 USD
Pentair Pentek SCBC-10 Carbon Water Filter, 10-Inch, Under Sink Silver-Impregnated Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron, White (Pack of 12)

Pentair Pentek SCBC-10 Carbon Water Filter, 10-Inch, Under Sink Silver-Impregnated Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron, White (Pack of 12)

Regular price $1,165.30 USD

Regular price Sale price $1,165.30 USD
CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 2.5)

CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 2.5)

Regular price $87.98 USD

Regular price Sale price $87.98 USD
4-Pack PVDF Ultrafiltration Membrane Filter Replacement, 10 Inch Flat End 0.01 Micron Cartridge Whole House and Under Sink Water, Washable, Long Lifespan

4-Pack PVDF Ultrafiltration Membrane Filter Replacement, 10 Inch Flat End 0.01 Micron Cartridge Whole House and Under Sink Water, Washable, Long Lifespan

Regular price $178.97 USD

Regular price Sale price $178.97 USD
CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 10 x 4.5)

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 10 x 4.5)

Regular price $43.98 USD

Regular price Sale price $43.98 USD
APPLIED MEMBRANES INC. 10" x 2.5" Carbon Block Filter Cartridge | Chlorine, Taste & Odor Reduction | 10 Micron Filtration Rating | Replacement Filter for Under Sink RO and Whole House Filters (1)

APPLIED MEMBRANES INC. 10" x 2.5" Carbon Block Filter Cartridge | Chlorine, Taste & Odor Reduction | 10 Micron Filtration Rating | Replacement Filter for Under Sink RO and Whole House Filters (1)

Regular price $36.28 USD

Regular price Sale price $36.28 USD

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Collection: Sink Under-Sink Filters

2-Pack PVDF Ultrafiltration Membrane Water Filter Cartridge, Flat End UF Filter Replacement, Fit for 10" Housings, Ideal for Whole House and Under Sink Water

2-Pack PVDF Ultrafiltration Membrane Water Filter Cartridge, Flat End UF Filter Replacement, Fit for 10" Housings, Ideal for Whole House and Under Sink Water

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 4.5)

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 4.5)

CTO20 5 Micron 2.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 2.5)

CTO20 5 Micron 2.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 2.5)

PureDrop PDR-16KPCB Under Sink Composite Water Filter

PureDrop PDR-16KPCB Under Sink Composite Water Filter

CTO20BB 5 Micron 4.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 4.5)

CTO20BB 5 Micron 4.5" x 20" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 20 x 4.5)

PureDrop PDR-16KUF2 Under Sink Ultra Filtration Water Filter

PureDrop PDR-16KUF2 Under Sink Ultra Filtration Water Filter

CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 2.5)

CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (2, 10 x 2.5)

Express Water – 1 Pack Activated Carbon Block ACB Water Filter Replacement – 5 Micron, 10 inch Filter – Under Sink and Reverse Osmosis System…

Express Water – 1 Pack Activated Carbon Block ACB Water Filter Replacement – 5 Micron, 10 inch Filter – Under Sink and Reverse Osmosis System…

PureDrop PDR-16KCU Under Sink Ultra Filtration Water Filter

PureDrop PDR-16KCU Under Sink Ultra Filtration Water Filter

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 4.5)

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 4.5)

100GPD RO Membrane Filter Replacement with Reverse Osmosis Membrane Housing, Wrench, 1/4" Quick-Connect Fitting, Check Valve, Fit Under Sink RO Home Drinking Water Filter Filtration Purifier System

100GPD RO Membrane Filter Replacement with Reverse Osmosis Membrane Housing, Wrench, 1/4" Quick-Connect Fitting, Check Valve, Fit Under Sink RO Home Drinking Water Filter Filtration Purifier System

Pentair Pentek SCBC-10 Carbon Water Filter, 10-Inch, Under Sink Silver-Impregnated Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron, White (Pack of 12)

Pentair Pentek SCBC-10 Carbon Water Filter, 10-Inch, Under Sink Silver-Impregnated Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron, White (Pack of 12)

CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 2.5)

CTO10 5 Micron 2.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (3, 10 x 2.5)

4-Pack PVDF Ultrafiltration Membrane Filter Replacement, 10 Inch Flat End 0.01 Micron Cartridge Whole House and Under Sink Water, Washable, Long Lifespan

4-Pack PVDF Ultrafiltration Membrane Filter Replacement, 10 Inch Flat End 0.01 Micron Cartridge Whole House and Under Sink Water, Washable, Long Lifespan

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 10 x 4.5)

CTO10BB 5 Micron 4.5" x 10" Carbon Block Water Filter Set – Replacement Cartridges for Whole House and Under Sink Systems, Universal Standard Size (1, 10 x 4.5)

APPLIED MEMBRANES INC. 10" x 2.5" Carbon Block Filter Cartridge | Chlorine, Taste & Odor Reduction | 10 Micron Filtration Rating | Replacement Filter for Under Sink RO and Whole House Filters (1)

APPLIED MEMBRANES INC. 10" x 2.5" Carbon Block Filter Cartridge | Chlorine, Taste & Odor Reduction | 10 Micron Filtration Rating | Replacement Filter for Under Sink RO and Whole House Filters (1)

Frequently asked questions

Better Water Management. Modern Solutions.

Collection: Sink Under-Sink Filters

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Frequently asked questions

Better Water Management. Modern Solutions.