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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

Hydronix RO & Filtration Systems 10" Blue Housing w/ Black Flat Cap 1/2" Ports
Hydronix

Hydronix RO & Filtration Systems 10" Blue Housing w/ Black Flat Cap 1/2" Ports

HF2-10BLBK12
in stock
$17.74 - $17.74
$17.74
$17.74 - $17.74
$17.74

Hydronix HF2 series Slim flat cap Filter housings are ideal for Typical applications as pre- and post-filtration for RO systems, under sink filters...

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$17.74 - $17.74
$17.74
$17.74 - $17.74
$17.74
Hydronix PFM-NUT-34 PFM Replacement Nut, 3/4" MNPT for PFM-210, and AFM-216 - IFilters
Hydronix PFM-NUT-34 PFM Replacement Nut, 3/4" MNPT for PFM-210, and AFM-216 - IFilters
Hydronix

Hydronix PFM-NUT-34 PFM Replacement Nut, 3/4" MNPT for PFM-210, and AFM-216

PFM-NUT-34
in stock
$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99

$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99
Hydrofit HDF-ECV0402 1/4” Tube x 1/8” MNPT, Elbow Check Valve - IFilters
Hydrofit

Hydrofit HDF-ECV0402 1/4” Tube x 1/8” MNPT, Elbow Check Valve

HDF-ECV0402
Out of stock
$4.22 - $4.22
$4.22
$4.22 - $4.22
$4.22

Hydrofit HDF-ECV0402 1/4” to 1/8” MNPT Elbow Check Valve – NSF 61 Certified, Quick Connect Fitting for Water & Food Applications HYDROFIT™ – ...

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$4.22 - $4.22
$4.22
$4.22 - $4.22
$4.22
Aquatrol AT-0717BK-25T 7 x 17 Inches PG Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol AT-0717BK-25T 7 x 17 Inches PG Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters Sale Sale
Aquatrol

Aquatrol AT-0717BK-25T 7 x 17 Inches PG Pressure Tank - 2.5” T Connection, Standard Base, Black

AT-0717BK-25T
in stock
$155.00
$155.00 - $155.00
$155.00
$71.68
$71.68 - $71.68
$71.68

Aquatrol AT-0717BK-25T 7 x 17 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black Aquatrol™ Pressure Tanks offer a reliable and cost-effect...

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$155.00
$155.00 - $155.00
$155.00
$71.68
$71.68 - $71.68
$71.68
Sale Sale
Aquatrol AT-1252BK-25T 1252 Pg Pressure Tank - 2.5" T Connection, Standard Base, Black - IFilters
Aquatrol AT-1252BK-25T 1252 Pg Pressure Tank - 2.5" T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-1252BK-25T 1252 Pg Pressure Tank - 2.5" T Connection, Standard Base, Black

AT-1252BK-25T
in stock
$143.56 - $143.56
$143.56
$143.56 - $143.56
$143.56

Aquatrol AT-1252BK-25T 1252 Pg, 2.5" T, Standard Base, Black Part Number: AT-1252BK-25TDimensions: 12 x 52 inches (304 x 1320 mm)Connection: 2.5" T...

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$143.56 - $143.56
$143.56
$143.56 - $143.56
$143.56
70-8-P-PG Polypropylene Union Tee Fitting 1/2 OD Tube x 1/2 OD Tube x 1/2 OD Tube - IFilters
Hydronix

70-8-P-PG Polypropylene Union Tee Fitting 1/2 OD Tube x 1/2 OD Tube x 1/2 OD Tube

HDX708
in stock
$5.24 - $5.24
$5.24
$5.24 - $5.24
$5.24

JACO polypropylene fittings are known for their excellent chemical resistance, making them suitable for use with most weak acids and alkalis. They ...

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$5.24 - $5.24
$5.24
$5.24 - $5.24
$5.24
1/4" OD Blue Polyethylene Tubing - 500 Ft - IFilters
Hydrofit

1/2" OD Blue Polyethylene Tubing - 250 Ft

PT08-BL-0250
in stock
$86.00 - $86.00
$86.00
$86.00 - $86.00
$86.00

The PT08-BL-0250 Blue Polyethylene tubing is manufactured from top-quality, low-density materials. The PT08-BL-0250 is ideal for a variety of uses ...

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$86.00 - $86.00
$86.00
$86.00 - $86.00
$86.00
316 Stainless Steel High Flow Filter Housing, 4.5"x20", 1" Ports - IFilters
HydroScientific

316 Stainless Steel High Flow Filter Housing, 4.5"x20", 1" Ports

HF4520SS316-10
in stock
$436.45 - $436.45
$436.45
$436.45 - $436.45
$436.45

The HF4520SS316-10 is a dependable filter housing suitable for various filtration applications. Constructed from durable 316 stainless steel, it of...

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$436.45 - $436.45
$436.45
$436.45 - $436.45
$436.45
Band Clamp for MRH4 Band Clamp Series Housings - IFilters
Band Clamp for MRH4 Band Clamp Series Housings - IFilters
HydroScientific

Band Clamp for MRH4 Band Clamp Series Housings

MRH4-BANDCLAMP
in stock
$147.78 - $147.78
$147.78
$147.78 - $147.78
$147.78

Replacement band clamp for the HydroScientific MRH4 Stainless Steel Housings, Band Clamp Series.

$147.78 - $147.78
$147.78
$147.78 - $147.78
$147.78
316 Stainless Steel High Flow Filter Housing, 4.5"x20", 1" Ports - IFilters
HydroScientific

HydroScientific HF4520SS-10 - Stainless Steel High Flow Filter Housing

HF4520SS-10
in stock
$299.94 - $299.94
$299.94
$299.94 - $299.94
$299.94

HydroScientific HF4520SS-10 – Stainless Steel High-Flow Filter Housing The HF4510SS-10 is a durable and reliable stainless steel filter housing des...

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$299.94 - $299.94
$299.94
$299.94 - $299.94
$299.94
Hydro Guard HDG-U300-UF Replacement Filter Set – OEM Replacement for HDG-U3000-UF
Hydro Guard

Hydro Guard HDG-U3UF-SET HDG-U300-UF Replacement Filter Set | OEM Replacement for HDG-U3000-UF

HDG-U3UF-SET
in stock
$77.35 - $77.35
$77.35
$77.35 - $77.35
$77.35

Hydro Guard HDG-U300-UF Replacement Filter Set – OEM Replacement for HDG-U3000-UF The Hydro Guard HDG-U300-UF Replacement Filter Set is the OEM rep...

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$77.35 - $77.35
$77.35
$77.35 - $77.35
$77.35
Aquatrol AQT-HL-7162 Bottom HUB Distributor – 2" Port, 6 Laterals for 30" Tanks
Aquatrol

Aquatrol AQT-HL-7162 Bottom HUB Distributor | 2" Port & 6 Laterals | Fits 30" Tanks

AQT-HL-7162
in stock
$180.41 - $180.41
$180.41
$180.41 - $180.41
$180.41

Aquatrol AQT-HL-7162 Bottom HUB Distributor – 2" Port, 6 Laterals for 30" Tanks The Aquatrol AQT-HL-7162 Bottom Mount Hub & Lateral Distributor...

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$180.41 - $180.41
$180.41
$180.41 - $180.41
$180.41
Drinking Water Feed Adapter Valve 3/8 & 1/2 Inch Pipe Connection, 1/4" QC Hose - IFilters
Hydrofit

Drinking Water Feed Adapter Valve 3/8 & 1/2 Inch Pipe Connection, 1/4" QC Hose

HDF-ASVA-14
in stock
$20.50 - $20.50
$20.50
$20.50 - $20.50
$20.50

This Hydrofit feed water adapter valve is used to connect RO or other drinking water systems using 3/8" or 1/2" connections, the feed port to the s...

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$20.50 - $20.50
$20.50
$20.50 - $20.50
$20.50
Polaris Scientific QS58HO – Replacement Quartz Sleeve for UVA-630HO High Output UV System
Polaris Scientific

Polaris Scientific QS58HO High Output Ultraviolet Replacement Quatz Sleeve

QS58HO
in stock
$58.20 - $58.20
$58.20
$58.20 - $58.20
$58.20

Polaris Scientific QS58HO – Replacement Quartz Sleeve for UVA-630HO High Output UV System The Polaris Scientific QS58HO is an OEM replacement quart...

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$58.20 - $58.20
$58.20
$58.20 - $58.20
$58.20
Aquatrol AT-1054BL-25T – 10" x 54" Mineral Pressure Tank for Water Softeners & Filtration (2.5" Port, Blue)
Aquatrol

Aquatrol AT-1054BL-25T 10 x 54 Blue Mineral Pressure Tank for Water Softeners or Filtration, 2.5" Port

AT-1054BL-25T
in stock

$98.10 - $98.10
$98.10
$98.10 - $98.10
$98.10

Aquatrol AT-1054BL-25T – 10" x 54" Mineral Pressure Tank for Water Softeners & Filtration (2.5" Port, Blue) The Aquatrol AT-1054BL-25T Mineral ...

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$98.10 - $98.10
$98.10
$98.10 - $98.10
$98.10
Hydronix LF-EC18-BN/1 Elegant Modern Ceramic RO Filtered Water Faucet, Brushed Nickel - IFilters
Hydronix

Hydronix LF-EC18-BN/1 Elegant Modern Ceramic RO Filtered Water Faucet, Brushed Nickel

LF-EC18-BN
in stock
$40.00 - $40.00
$40.00
$40.00 - $40.00
$40.00

Hydronix LF-EC18-BN - Elegant Modern Ceramic RO Filtered Water Faucet (Brushed Nickel) Premium Brushed Nickel Faucet for Reverse Osmosis & Drin...

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$40.00 - $40.00
$40.00
$40.00 - $40.00
$40.00
Hydro Guard HDG-005 Replacement O-ring for Hydro Guard Drop In Style HDG45 RO Housing - IFilters
Hydro Guard

Hydro Guard HDG-005 Replacement O-ring for Hydro Guard Drop In Style HDG45 RO Housing

HDG-005
in stock
$2.99 - $2.99
$2.99
$2.99 - $2.99
$2.99

Hydro Guard HDG-005 Replacement O-Ring – Perfect Fit for HDG-45 Drop-In Style RO Housing Ensure a leak-free seal and maintain the efficiency of you...

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$2.99 - $2.99
$2.99
$2.99 - $2.99
$2.99
3/4" Brass Garden Hose Dual Swivel Female Connector for Male Hose to Male Hose - IFilters
PRO+AQUA

3/4" Brass Garden Hose Dual Swivel Female Connector for Male Hose to Male Hose

GHT-SWVL
in stock
$6.98 - $6.98
$6.98
$6.98 - $6.98
$6.98

Pro+Aqua 3/4" Brass Garden Hose Dual Swivel Female Connector for Male Hose to Male Hose

$6.98 - $6.98
$6.98
$6.98 - $6.98
$6.98
Pro+Aqua 3/4" Garden Hose Shut Off Valve, Heavy Duty Ball Valve Water Hose Fitting - IFilters
PRO+AQUA

Pro+Aqua 3/4" Garden Hose Shut Off Valve, Heavy Duty Ball Valve Water Hose Fitting

GHT-SOV
in stock
$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99

Pro+Aqua 3/4" Garden Hose Shut Off Valve, Heavy Duty Ball Valve Water Hose Fitting, Easy On/Off Ergonomic Design

$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99
iFilters 5ft 1/4" Polyethylene Tubing for Reverse Osmosis Systems- PT04-WH-5 (White) - IFilters
iFilters

iFilters 5ft 1/4" Polyethylene Tubing for Reverse Osmosis Systems- PT04-WH-5 (White)

PT04-WH-5
in stock
$7.99 - $7.99
$7.99
$7.99 - $7.99
$7.99

iFilters PT04-WH-5 – 5 ft. White 1/4" Polyethylene Tubing – Flexible, Durable & Chemical-Resistant 5ft NSF 1/4" POLYETHYLENE TUBE The iFilters ...

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$7.99 - $7.99
$7.99
$7.99 - $7.99
$7.99
Hydronix HF2-10WHBK12 – 10" White Slim Filter Housing with Black Cap (1/2" Ports)
Hydronix

Hydronix HF2-10WHBK12 White 10" Housing Black Cap, RO, Whole House, Drinking Filter Systems 1/2" Ports

HF2-10WHBK12
in stock
$16.60 - $16.60
$16.60
$16.60 - $16.60
$16.60

Hydronix HF2-10WHBK12 – 10" White Slim Filter Housing with Black Cap (1/2" Ports) The Hydronix HF2-10WHBK12 is a compact, high-quality filter housi...

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$16.60 - $16.60
$16.60
$16.60 - $16.60
$16.60
HF3/5 PR Button Kit - IFilters
Hydronix

HF3/5 PR Button Kit

HF3/5-PR
in stock
$1.91 - $1.91
$1.91
$1.91 - $1.91
$1.91

Replacement PR Button Kit for the Hydronix HF2, HF3 and HF5 filters. Made from durable materials for durability. This replacement PR Button Kit com...

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$1.91 - $1.91
$1.91
$1.91 - $1.91
$1.91
MRH-710-2 SS304 Filter Housing - IFilters
HydroScientific

MRH-710-2 SS304 Filter Housing

MRH-710-2
in stock
$939.82 - $939.82
$939.82
$939.82 - $939.82
$939.82

HydroScientific MRH-710-2 SS304 10" Filter Housing, 7 Rounds, 2" FNPT, 150 PSI, 42 GPM

$939.82 - $939.82
$939.82
$939.82 - $939.82
$939.82
MRH-7-ORING O-Ring For 7 Round MRH Housings - IFilters
HydroScientific

MRH-7-ORING O-Ring For 7 Round MRH Housings

MRH-7-ORING
in stock
$38.99 - $38.99
$38.99
$38.99 - $38.99
$38.99

MRH-7-ORING replacement O-Ring for Hydronix 7 Round MRH Housings. Made from durable EPDM material.

$38.99 - $38.99
$38.99
$38.99 - $38.99
$38.99
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