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Shop All Water Filters, Parts & Systems

Fresh, dependable water starts with the right setup, and iFilters makes it easy to find what fits your space. Water Filters, Parts & Systems in this collection cover everyday drinking needs, whole-home protection, and jobsite-ready solutions for commercial and industrial use. Browse by product type, filter size, or compatibility so replacements and upgrades stay simple. Options span sediment, carbon, reverse osmosis, and UV, giving you a clear path from problem to solution. Fast shipping and helpful support keep your project moving.

About iFilters Water Filtration Products

iFilters brings a one-stop catalog together, from complete whole-house filtration systems to specialized drinking water systems for sinks and dispensers. Commercial systems help support higher flow demands, while replacement filters keep performance consistent between service intervals. Parts like housings, fittings, adapters, and power supplies help you maintain, repair, or expand an existing setup without guesswork. Ultraviolet systems add an extra layer for applications that benefit from UV treatment. Tools and specialty systems round out the collection for unique installs, seasonal needs, and niche use cases.

Why Choose iFilters for Water Filtration Gear?

Confidence comes from selection, and this store is built around breadth and compatibility across many brands and applications. Auto Ship subscriptions make routine replacements easier, while discounts help reduce long-term ownership costs. Expert support is available when you need help choosing the right part, matching a cartridge, or planning a system refresh. Free shipping starts at qualifying order thresholds, and a satisfaction guarantee adds peace of mind at checkout.

Shop water filtration systems and parts online today!

Filters

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Aquasure Premier Pro Series 4-Stage Reverse Osmosis System + LED Faucet – 100 GPD High Capacity Water Filtration - IFilters
Aquasure Premier Pro Series 4-Stage Reverse Osmosis System + LED Faucet – 100 GPD High Capacity Water Filtration - IFilters
Aquasure

Aquasure Premier Pro Series 4-Stage Reverse Osmosis System + LED Faucet – 100 GPD High Capacity Water Filtration

AS-PR100P
in stock
$239.99 - $239.99
$239.99
$239.99 - $239.99
$239.99

OverviewThe Aquasure Premier Pro Series Advanced 100 GPD Reverse Osmosis Drinking Water System delivers high-volume, purified water straight from y...

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$239.99 - $239.99
$239.99
$239.99 - $239.99
$239.99
Aquasure Premier Advanced Series 4-Stage Reverse Osmosis System + Alkaline Remineralizing Filter – 75 GPD Clean Drinking Water - IFilters
Aquasure Premier Advanced Series 4-Stage Reverse Osmosis System + Alkaline Remineralizing Filter – 75 GPD Clean Drinking Water - IFilters
Aquasure

Aquasure Premier Advanced Series 4-Stage Reverse Osmosis System + Alkaline Remineralizing Filter – 75 GPD Clean Drinking Water

AS-PR75AK
in stock
$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99

OverviewThe Aquasure Premier Series Advanced 75 GPD Reverse Osmosis Drinking Water System with Alkaline Remineralizing Filter enhances your water w...

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$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99
Aquasure Premier Advanced Series 4-Stage 75 GPD Reverse Osmosis Water Filtration System Chrome Faucet Clean Drinking Water Solution - IFilters
Aquasure Premier Advanced Series 4-Stage 75 GPD Reverse Osmosis Water Filtration System Chrome Faucet Clean Drinking Water Solution - IFilters
Aquasure

Aquasure Premier Advanced Series 4-Stage 75 GPD Reverse Osmosis Water Filtration System Chrome Faucet Clean Drinking Water Solution

AS-PR75A
in stock
$189.99 - $189.99
$189.99
$189.99 - $189.99
$189.99

OverviewThe Aquasure Premier Series Advanced 75 GPD Reverse Osmosis Drinking Water System offers the perfect solution for delivering clean, refres...

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$189.99 - $189.99
$189.99
$189.99 - $189.99
$189.99
Auto Ship
Hydronix 2.5" x 10" CIC Plus Carbon / Sediment Filter 5 Micron - CIC-10PLUS - IFilters
Hydronix

Hydronix 2.5" x 10" CIC Plus Carbon / Sediment Filter 5 Micron - CIC-10PLUS

CIC-10PLUS
in stock
$10.52 - $10.52
$10.52
$10.52 - $10.52
$10.52

Hydronix 2.5 x 10 Inch CIC Plus Carbon Block Water Filter – 5 Micron for Sediment & Chlorine Reduction – CIC-10PLUS Replacement Filter Premium ...

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$10.52 - $10.52
$10.52
$10.52 - $10.52
$10.52
HYDROFIT 1/4" x 1/4" x 1/4" Tube Stem Branch Tee HDF-SBT0404 - IFilters
Hydrofit

HYDROFIT 1/4" x 1/4" x 1/4" Tube Stem Branch Tee HDF-SBT0404

HDF-SBT0404
in stock
$1.30 - $1.30
$1.30
$1.30 - $1.30
$1.30

$1.30 - $1.30
$1.30
$1.30 - $1.30
$1.30
Auto Ship
Hydron

HYDRON MEMBRANE 300GPD Reverse Osmosis (RO) Water Filter – SKU: TW-3012

TW-3012
in stock
$70.25 - $70.25
$70.25
$70.25 - $70.25
$70.25

Upgrade your water purification system with the HYDRON MEMBRANE 300GPD, a high-performance reverse osmosis (RO) membrane designed for efficient fil...

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$70.25 - $70.25
$70.25
$70.25 - $70.25
$70.25
Auto Ship
HydroScientific HSC-40-0.35-PPA Pleated Sediment Filter – 0.35 Micron Absolute, Jumbo 7-3/4" x 9-5/8" - IFilters
HydroScientific

HydroScientific HSC-40-0.35-PPA Pleated Sediment Filter – 0.35 Micron Absolute, Jumbo 7-3/4" x 9-5/8"

HSC-40-0.35-PPA
in stock
$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99

Hydroscientific Pleated Sediment Water Filter Jumbo 40 – 0.35 Micron Absolute – HSC-40-0.35-PPA Pleated Jumbo High Flow Filter CartridgesHSC SERIE...

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$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99
HYDROFIT 1/4" Tube to 3/4" Female NPT Hose Connector – HDF-BF0412 Adapter Fitting for Hydraulic & Plumbing Systems - IFilters
HYDROFIT 1/4" Tube to 3/4" Female NPT Hose Connector – HDF-BF0412 Adapter Fitting for Hydraulic & Plumbing Systems - IFilters
Hydrofit

HYDROFIT 1/4" Tube to 3/4" Female NPT Hose Connector – HDF-BF0412 Adapter Fitting for Hydraulic & Plumbing Systems

HDF-BF0412
in stock
$9.71 - $9.71
$9.71
$9.71 - $9.71
$9.71

HYDROFIT 1/4" Tube x 3/4" Female NPT Hose Connector – HDF-BF0412 This high-quality adapter connects a 1/4" tube to a 3/4" female NPT (National Pipe...

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$9.71 - $9.71
$9.71
$9.71 - $9.71
$9.71
Auto Ship
Hydronix

HYDRONIX HTC-2520-BX 2.5x20" Sediment & Phosphate Water Filter | Includes Box | Dual-Action

HTC-2520-BX
in stock
$27.66 - $27.66
$27.66
$27.66 - $27.66
$27.66

HYDRONIX SEDIMENT PHOSPHATE FILTERSize: 2.5" x 20"Type: Dual-action filter for sediment and phosphate reductionIncluded: Original packaging box The...

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$27.66 - $27.66
$27.66
$27.66 - $27.66
$27.66
Auto Ship
Hydron

Hydro Guard HDG-45 (Drop In) Reverse Osmosis Membrane

HDG-TW50
in stock
$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00

Genuine OEM Hydro Guard HDG-TW50 Drop In Reverse Osmosis Membrane for 4 Stage HDG-45 Drop-In Style Reverse Osmosis System. Not Compatible with the ...

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$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00
HYDRONIX 4" x 61" Stainless Steel RO Membrane Housing (SPV-4061) – 300 PSI, 3/4" Feed, 1/2" Permeate SPV-4061 - IFilters
HYDRONIX 4" x 61" Stainless Steel RO Membrane Housing (SPV-4061) – 300 PSI, 3/4" Feed, 1/2" Permeate SPV-4061 - IFilters
Sale Sale
Hydronix

HYDRONIX 4" x 61" Stainless Steel RO Membrane Housing (SPV-4061) – 300 PSI, 3/4" Feed, 1/2" Permeate SPV-4061

SPV-4061
in stock
$322.99
$322.99 - $322.99
$322.99
$211.35
$211.35 - $211.35
$211.35

The HYDRONIX SPV-4061 is a high-performance 4-inch x 61-inch stainless steel pressure vessel designed for reverse osmosis (RO) systems. Built to wi...

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$322.99
$322.99 - $322.99
$322.99
$211.35
$211.35 - $211.35
$211.35
Sale Sale
PRO-S-80E-SCI_02
PRO-S-80E-SCI_01
PRO+AQUA

PRO-SCI-S80E 80,000 Grain Whole House Water Filter & Softener Bundle

PRO-SCI-S80E
In stock
$1,200.95 - $1,200.95
$1,200.95
$1,200.95 - $1,200.95
$1,200.95

Maximum Capacity. Total Home Confidence. Our most powerful water treatment bundle yet—engineered for large households with high water demand. This ...

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$1,200.95 - $1,200.95
$1,200.95
$1,200.95 - $1,200.95
$1,200.95
PRO+AQUA

PRO-SCI-S65E 65,000 Grain Whole House Water Filter & Softener Bundle

PRO-SCI-S65E
In stock
$1,083.95 - $1,083.95
$1,083.95
$1,083.95 - $1,083.95
$1,083.95

High-Capacity Power. Whole-Home Peace of Mind. Built for big families and busy homes, this dual-stage system delivers ultra-clean, soft water to ev...

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$1,083.95 - $1,083.95
$1,083.95
$1,083.95 - $1,083.95
$1,083.95
PRO+AQUA

PRO-SCI-S55E 55,000 Grain Whole House Water Filter & Softener Bundle

PRO-SCI-S55E
In stock
$1,000.90 - $1,000.90
$1,000.90
$1,000.90 - $1,000.90
$1,000.90

Heavy-Duty Water Treatment. Whole-Home Peace of Mind. Engineered for large households, this high-capacity dual-stage system delivers consistently c...

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$1,000.90 - $1,000.90
$1,000.90
$1,000.90 - $1,000.90
$1,000.90
PRO+AQUA

PRO-SCI-S45E 45,000 Grain Whole House Water Filter & Softener Bundle

PRO-SCI-S45E
In stock
$926.95 - $926.95
$926.95
$926.95 - $926.95
$926.95

Bigger Capacity. Full-Home Comfort. Designed for larger households, this powerful dual-stage system delivers cleaner, softer water to every tap. Wi...

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$926.95 - $926.95
$926.95
$926.95 - $926.95
$926.95
PRO+AQUA

PRO-SCI-S35E 35,000 Grain Whole House Water Filter & Softener Bundle

PRO-SCI-S35E
In stock
$848.95 - $848.95
$848.95
$848.95 - $848.95
$848.95

Clean, Soft Water. Whole-Home Confidence. Enjoy smoother skin, shinier hair, longer-lasting appliances, and better-tasting water. Every tap, every ...

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$848.95 - $848.95
$848.95
$848.95 - $848.95
$848.95
Whole House Water Filtration System + 65,000 Grain Water Softener | Bundle
Whole House Water Filtration System + 65,000 Grain Water Softener | Bundle
PRO+AQUA

Whole House Water Filtration System + 80,000 Grain Water Softener | Bundle

PRO-E-S80E
in stock
$1,445.56 - $1,445.56
$1,445.56
$1,445.56 - $1,445.56
$1,445.56

Ultimate water quality for extra-large homes. Powerful filtration plus high-capacity softening built to protect families and plumbing systems at sc...

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$1,445.56 - $1,445.56
$1,445.56
$1,445.56 - $1,445.56
$1,445.56
Whole House Water Filtration System + 55,000 Grain Water Softener | Bundle
Whole House Water Filtration System + 55,000 Grain Water Softener | Bundle
PRO+AQUA

Whole House Water Filtration System + 65,000 Grain Water Softener | Bundle

PRO-E-S65E
in stock
$1,328.56 - $1,328.56
$1,328.56
$1,328.56 - $1,328.56
$1,328.56

Powerful water filtration and softening for large households. Enjoy cleaner, softer water that protects your family and appliances. The PRO+AQUA PR...

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$1,328.56 - $1,328.56
$1,328.56
$1,328.56 - $1,328.56
$1,328.56
Whole House Water Filtration System + 45,000 Grain Water Softener | Bundle
Whole House Water Filtration System + 45,000 Grain Water Softener | Bundle
PRO+AQUA

Whole House Water Filtration System + 55,000 Grain Water Softener | Bundle

PRO-E-S55E
in stock
$1,245.51 - $1,245.51
$1,245.51
$1,245.51 - $1,245.51
$1,245.51

Get powerful well water protection and efficient softening for large households. The PRO-SCI-S55E pairs our advanced 3-stage PRO-100-E whole house ...

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$1,245.51 - $1,245.51
$1,245.51
$1,245.51 - $1,245.51
$1,245.51
Aquasure Signature Elite 5-in-1 Whole House Water Treatment Bundle with 48,000 Grain Fine Mesh Resin Softener + 12 GPM UV Sterilizer - IFilters
Aquasure Signature Elite 5-in-1 Whole House Water Treatment Bundle with 48,000 Grain Fine Mesh Resin Softener + 12 GPM UV Sterilizer - IFilters
Aquasure

Aquasure Signature Elite 5-in-1 Whole House Water Treatment Bundle with 48,000 Grain Fine Mesh Resin Softener + 12 GPM UV Sterilizer

AS-SE1000FMU
in stock
$1,999.99 - $1,999.99
$1,999.99
$1,999.99 - $1,999.99
$1,999.99

Overview The Aquasure Signature Elite 48,000 Grains Whole House Water Softener & Conditioner Bundle (AS-SE1000FMU) delivers an advanced 8-stage...

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$1,999.99 - $1,999.99
$1,999.99
$1,999.99 - $1,999.99
$1,999.99
Auto Ship
iFilters

iFilters CBSM-2510 Coconut Shell CTO, Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 Micron (2 Pack)

CBSM-2510-2PK
in stock
$37.99 - $37.99
$37.99
$37.99 - $37.99
$37.99

iFilters CBSM-2510 Coconut Shell CTO Carbon Block Drinking Water Filter – 2.5" x 10", 0.5 Micron (2 Pack) High-Performance Filtration for Clean, Gr...

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$37.99 - $37.99
$37.99
$37.99 - $37.99
$37.99
Auto Ship
iFilters SG-GAC-SET (LWH-D Version 2) OEM Replacement Filter Set Sediment, Rust & CTO Filters - IFilters
iFilters

iFilters SG-GAC-SET (LWH-D Version 2) OEM Replacement Filter Set Sediment, Rust & CTO Filters (2 Pack)

IF2-SG-GAC-SET
in stock
$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

iFilters SG-GAC-SET (LWH-D Version 2) OEM Replacement Filter Set – Sediment & Carbon GAC (2 Pack) Upgrade your iFilters LWH-D Whole House Filt...

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$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00
Auto Ship
iFilters CBSM-2510 Coconut Shell CTO, Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 Micron - IFilters
iFilters

iFilters CBSM-2510 Coconut Shell CTO, Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 Micron (4 Pack)

CBSM-2510-4PK
in stock
$67.99 - $67.99
$67.99
$67.99 - $67.99
$67.99

iFilters CBSM-2510 Coconut Shell CTO Carbon Block Drinking Water Filter – 2.5" x 10", 0.5 Micron High-Performance Filtration for Clean, Great-Tasti...

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$67.99 - $67.99
$67.99
$67.99 - $67.99
$67.99
3/4 Inch NPT Male Plastic Nipple Hex Connector With O-rings
Hydronix

3/4 Inch NPT Male Plastic Nipple Hex Connector With O-rings

NP-34
in stock
$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99

3/4" NPT Nipple Male Plastic Connector is made from Polypropylene. The Center has a Hex shape to allow tool installation.

$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
Autoship Popup
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