Skip to content

Water Filtration System Parts

Reliable System parts keep your water filtration setup running at its best. From small seals to advanced electrical components, each part plays a role in maintaining water flow, pressure control, and filtration accuracy. Over time, wear and tear can affect valves, housings, and fittings, which makes timely replacement important. Choosing compatible components helps extend system life and protect your investment.

About Our System Parts

Our collection includes water softener heads, riser tubes, distributor baskets, pressure gauges, and power adapters designed for filtration and treatment systems. You will also find O-rings for various housing models, reverse osmosis booster pumps, storage tanks, and pressure protection valves. Ultraviolet system ballasts and replacement lamps are available to support disinfection performance. For countertop and under-sink systems, faucet adapters, fittings, and stainless steel connectors offer secure installation. Every component is selected to meet standard sizing and performance needs across many filtration brands.

Each product listing highlights availability, reviews, and compatibility details to help you make confident decisions. With hundreds of parts in stock, finding the right replacement becomes straightforward. Whether you are upgrading a softener valve or replacing a worn gasket, quality components restore proper function.

Why Choose iFilters for System Parts?

iFilters offers a wide selection of system parts backed by consistent inventory and dependable shipping. Clear product descriptions and model references make it easier to match parts with your system. Competitive pricing supports both residential users and professional installers. Customer feedback and ratings add helpful insight before purchase.

Shop system parts online today!

Original price $49.95 - Original price $49.95
Original price
$49.95
$49.95 - $49.95
Current price $49.95

Polaris Scientific QS48HO – Replacement Quartz Sleeve for UVA-418HO UV System The Polaris Scientific QS48HO is an OEM quartz sleeve designed for th...

View full details
Original price $49.95 - Original price $49.95
Original price
$49.95
$49.95 - $49.95
Current price $49.95
Original price $25.99 - Original price $25.99
Original price
$25.99
$25.99 - $25.99
Current price $25.99

iFilters Garden Water Hose With Easy Swivel Grip, 5/8 in. x 5 ft., Heavy Duty, Drinking Water Safe

Original price $25.99 - Original price $25.99
Original price
$25.99
$25.99 - $25.99
Current price $25.99
Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99

Hydro Guard HDG45-10BODY Replacement Housing – OEM Drop-In Style for HDG-45 RO System Ensure the longevity and efficiency of your Hydro Guard HDG-4...

View full details
Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99
Original price $55.98 - Original price $55.98
Original price
$55.98
$55.98 - $55.98
Current price $55.98

1" Stainless Steel Bypass Valve for Pro+Aqua, Aquatrol, Fleck Control Heads 56 Series, 2510, 5600, 5600SXT, 9000, 9100

Original price $55.98 - Original price $55.98
Original price
$55.98
$55.98 - $55.98
Current price $55.98
Original price $40.19 - Original price $40.19
Original price
$40.19
$40.19 - $40.19
Current price $40.19

The Hydronix HF45-10BLBK10PR 10" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing...

View full details
Original price $40.19 - Original price $40.19
Original price
$40.19
$40.19 - $40.19
Current price $40.19
Original price $67.50 - Original price $67.50
Original price
$67.50
$67.50 - $67.50
Current price $67.50

The Hydronix IFM-110 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. The IFM-110 has ...

View full details
Original price $67.50 - Original price $67.50
Original price
$67.50
$67.50 - $67.50
Current price $67.50
Original price $32.97 - Original price $32.97
Original price
$32.97
$32.97 - $32.97
Current price $32.97

The Hydronix IFM-055 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. The IFM-055 has ...

View full details
Original price $32.97 - Original price $32.97
Original price
$32.97
$32.97 - $32.97
Current price $32.97
Original price $17.48 - Original price $17.48
Original price
$17.48
$17.48 - $17.48
Current price $17.48

Polaris Scientific GL10SE4P – 10W UV Ultraviolet Germicidal Replacement Lamp (4-Pin) for UV-1C System The Polaris Scientific GL10SE4P is a high-qua...

View full details
Original price $17.48 - Original price $17.48
Original price
$17.48
$17.48 - $17.48
Current price $17.48
Original price $32.99 - Original price $32.99
Original price
$32.99
$32.99 - $32.99
Current price $32.99

Polaris Scientific GL14PP Replacement Germicidal Lamp for the UVA-2C Ultraviolet UV System.

Original price $32.99 - Original price $32.99
Original price
$32.99
$32.99 - $32.99
Current price $32.99
Original price $211.77 - Original price $211.77
Original price
$211.77
$211.77 - $211.77
Current price $211.77

The Hydronix HF45-20CLBK10PR 20" Clear Filter Housing (with Pressure Relief Button) is an extra-wide housing that accommodates large 4.5" wide filt...

View full details
Original price $211.77 - Original price $211.77
Original price
$211.77
$211.77 - $211.77
Current price $211.77
Original price $0.95 - Original price $0.95
Original price
$0.95
$0.95 - $0.95
Current price $0.95

Hydronix NP-38 3/8" NPT Male Nipple Connector – Polypropylene, NSF Approved The Hydronix NP-38 is a high-quality 3/8" NPT male nipple connector mad...

View full details
Original price $0.95 - Original price $0.95
Original price
$0.95
$0.95 - $0.95
Current price $0.95
Original price $0.43 - Original price $0.43
Original price
$0.43
$0.43 - $0.43
Current price $0.43

The CLP-25W 2.5" Clip for Membrane Housings is a replacement filter clip that is constructed out of polypropylene, which makes it very strong and f...

View full details
Original price $0.43 - Original price $0.43
Original price
$0.43
$0.43 - $0.43
Current price $0.43
Original price $6.99 - Original price $6.99
Original price
$6.99
$6.99 - $6.99
Current price $6.99

OEM Replacement cap for LWH Series filtration systems made after 2021.

Original price $6.99 - Original price $6.99
Original price
$6.99
$6.99 - $6.99
Current price $6.99
Original price $14.40 - Original price $14.40
Original price
$14.40
$14.40 - $14.40
Current price $14.40

Replacement drain line for water softeners and filtration systems. Compatible with most systems using standard 1/2" Quick Connect (push-in) port.

Original price $14.40 - Original price $14.40
Original price
$14.40
$14.40 - $14.40
Current price $14.40
Original price $5.44 - Original price $5.44
Original price
$5.44
$5.44 - $5.44
Current price $5.44

The Hydrofit 3/8" Inline Check Valve is NSF to NSF/ANSI certified Hydrofit Quick Connect Fittings are designed to provide all the typical benefits ...

View full details
Original price $5.44 - Original price $5.44
Original price
$5.44
$5.44 - $5.44
Current price $5.44
Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99

Hydronix PMP-TSO14 RO Tank Pressure Shut-Off Switch for Reverse Osmosis Booster Pump, 1/4" Quick Connect The Hydronix PMP-TSO14 is a high-quality p...

View full details
Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99
Original price $28.99 - Original price $28.99
Original price
$28.99
$28.99 - $28.99
Current price $28.99

Original replacement cap for the Hydronix HF45 housings with 1" In/Out Ports Original replacement cap for the iFilters MWH Series Filtration System...

View full details
Original price $28.99 - Original price $28.99
Original price
$28.99
$28.99 - $28.99
Current price $28.99
Original price $1.57 - Original price $1.57
Original price
$1.57
$1.57 - $1.57
Current price $1.57

Replacement O-Ring for the Hydronix MH03 Membrane Housings. Made from durable EPDM material. This O-Ring is for the housing unit and not the Cap. F...

View full details
Original price $1.57 - Original price $1.57
Original price
$1.57
$1.57 - $1.57
Current price $1.57
Original price $62.79 - Original price $62.79
Original price
$62.79
$62.79 - $62.79
Current price $62.79

The Hydronix HF45-10CLBK10PR 10" Clear Filter Housing (with Pressure Relief Button) is an extra-wide housing that accommodates large 4.5" wide filt...

View full details
Original price $62.79 - Original price $62.79
Original price
$62.79
$62.79 - $62.79
Current price $62.79
Original price $34.00 - Original price $34.00
Original price
$34.00
$34.00 - $34.00
Current price $34.00

Hydronix LF-EC25-AB Ceramic Faucet is an antique brass faucet that can be used in reverse osmosis and drinking water systems. The LF-EC25-AB faucet...

View full details
Original price $34.00 - Original price $34.00
Original price
$34.00
$34.00 - $34.00
Current price $34.00
Original price $26.90 - Original price $26.90
Original price
$26.90
$26.90 - $26.90
Current price $26.90

Polaris Scientific GL24PP Replacement Germicidal Lamp for the UVA-6C Ultraviolet UV System.

Original price $26.90 - Original price $26.90
Original price
$26.90
$26.90 - $26.90
Current price $26.90
Original price $2.50 - Original price $2.50
Original price
$2.50
$2.50 - $2.50
Current price $2.50

The HDF-UC0604 is used to increase or reduce 3/8" hoses to 1/4" hoses. This fitting features Quick Connect ports for an easy push in installation.

Original price $2.50 - Original price $2.50
Original price
$2.50
$2.50 - $2.50
Current price $2.50
Original price $19.50 - Original price $19.50
Original price
$19.50
$19.50 - $19.50
Current price $19.50

The PG25300B is UV resistant, high quality water pressure gauge designed with the OEM in mind. From the special synthetic fluid used to fill the ga...

View full details
Original price $19.50 - Original price $19.50
Original price
$19.50
$19.50 - $19.50
Current price $19.50
Original price $5.29 - Original price $5.29
Original price
$5.29
$5.29 - $5.29
Current price $5.29

Light-Duty Bracket. Fits Hydronix HF2, HF3 Slim Line Housings. Fits All 10" and 20" Slim Line housings from Flowmatic, Pentek, Watts, Liquatec, Hyd...

View full details
Original price $5.29 - Original price $5.29
Original price
$5.29
$5.29 - $5.29
Current price $5.29
{"statementLink":"","footerHtml":"","hideMobile":false,"hideTrigger":false,"disableBgProcess":false,"language":"en","position":"right","leadColor":"#146ff8","triggerColor":"#146ff8","triggerRadius":"50%","triggerPositionX":"right","triggerPositionY":"bottom","triggerIcon":"people","triggerSize":"medium","triggerOffsetX":95,"triggerOffsetY":20,"mobile":{"triggerSize":"small","triggerPositionX":"right","triggerPositionY":"bottom","triggerOffsetX":90,"triggerOffsetY":10,"triggerRadius":"50%"}}