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Cartridges - Undersink

> Cartridges - Undersink

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    4 Stage Countertop Reverse ...
    $250.00
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    Psi-014p Matrikx™ Pb1 Cartr...
    $280.00
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    WH-003-SS Triple Whole House
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Cartridges - Undersink
Cartridges - Undersink

Under Sink Water Filter Cartridges

Undersink water filters are a critical component in every Australian kitchen. Thanks to our acid sulphate soils, bushfires and naturally occurring salinity, it’s important to ensure high-quality water while cooking and drinking from the tap.

That said, undersink water filters won’t stay in perfect condition forever. It’s critical to keep a close eye on your filter and replace any elements that lose their efficiency — especially the undersink cartridge itself.

At PSI Water Filters, we understand how much clean water matters to you and your loved ones. That’s why we specialise in high quality undersink water filters and their replacement cartridges, helping thousands of Australians keep their water supply in perfect condition.

Our replacement undersink cartridges

PSI Water Filters offers undersink water filter replacement cartridges for every model. You’re welcome to select an option that best works for you and the quality of your water supply.

Our most popular replacement cartridges include:

  • Omnipure OMB934-1mpb
  • Matrikx PB1
  • Aragon

You can browse our full collection of undersink cartridges at any time.


Let PSI Water Filters be your undersink cartridge partner

When it comes time to replace your undersink filter cartridge, don’t settle for mediocre options on the market. The professionals at PSI Water Filters would be happy to provide honest, trustworthy and unbiased advice about recommended replacement models for your undersink system. Plus, with our quality product guarantee, you’ll know you can trust what we bring to the table.

Connect with the team at PSI Water Filters to get the undersink replacement cartridge that’s right for you. You can call us directly at (03) 6344 4635, email us at sales@psifilters.com.au or simply submit an online contact form. You’ll be connected with a seasoned filtration expert right away.


FAQs

How often do undersink water filter replacement cartridges need to be replaced?

Undersink water filter replacement cartridges typically last 6 to 12 months. Larger families may need to replace their filters more frequently, especially if their system receives heavy use. Couples or single persons, however, may only need to replace their filters once per year.

What are the signs that my undersink water filter replacement cartridge needs to be replaced?

The signs of a failing undersink water filter are quite obvious:

  • Changes in colour
  • Poor flavour or taste profiles
  • Strong or foul odours

Contact PSI Water Filters for more information if you aren’t sure about your undersink water filter.

How do I choose the right replacement cartridge for my undersink water filter?

Your current undersink water filter may have instructional guidelines explaining the types of replacement cartridges available for purchase. But if that’s not the case, PSI Water Filters would be happy to help. Reach out to us via phone, email or contact form to chat about your needs.

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Mixed Bed Resin 500 Grams - Mixed Bed Resin 500 Grams - PSI Water Filters Australia
PSI Water Filters Australia
Mixed Bed Resin 500 Grams
MB115 mixed bed resin 500grams which is enough to re-fill a re-fillable Di cartridge, this is...
Regular price $16.00
Regular price $16.00
available: -953
Calcite - Calcite - PSI Water Filters Australia
PSI Water Filters Australia
Calcite
Calcite is a naturally occurring calcium carbonate Material.. When properly applied, it corrects pH to a...
Regular price $25.00
Regular price $25.00
available: -389
Re-fillable DI inline 10 Sale -50%
PSI Water Filters Australia
Re-fillable DI inline 10" x 2.5" cartridge
Re-fillable 10" x 2.5" cartridge full of MB 115 DI resin Suitable for Reverse osmosis DI...
Regular price $25.00 $50.00
Regular price $25.00
available: -19
Coral Sand - Coral Sand - PSI Water Filters Australia
PSI Water Filters Australia
Coral Sand
This coral sand can be used on any of our refillable Remineraliser Harvested from inundated coral...
Regular price $30.00
Regular price $30.00
available: -70
Matrikx™ CTO  + 1 Micron Polyspun Sediment - Matrikx™ CTO  + 1 Micron Polyspun Sediment - PSI Water Filters Australia Matrikx™ CTO  + 1 Micron Polyspun Sediment - Matrikx™ CTO  + 1 Micron Polyspun Sediment - PSI Water Filters Australia
PSI Water Filters Australia
Matrikx™ CTO + 1 Micron Polyspun Sediment
MATRIKX ™ CTO FEATURES and BENEFITS  Chlorine and Chloramine reduction* 5 micron nominal filtration reduces sand, rust...
  • Chloramine & chlorine rated
  • PFAS rated
  • Coconut based
  • 5 Micron
Regular price $35.00
Regular price $35.00
available: -254
Omnipure OMB934-5M + 1 Micron Polyspun Sediment - Omnipure OMB934-5M + 1 Micron Polyspun Sediment - PSI Water Filters Australia
PSI Water Filters Australia
Omnipure OMB934-5M + 1 Micron Polyspun Sediment
Omnipure OMB934-5M, is a workhorse carbon filter. Omnipure cartridges are one only a few manufacturers left...
  • USA made carbon filter
  • Pre carbon for RO systems
  • 5 Micron carbon block
  • NSF certified
Regular price $37.50
Regular price $37.50
available: -738
Rocdl-01 Laundry Wall Mount Replacement Cartridges - Rocdl-01 Laundry Wall Mount Replacement Cartridges - PSI Water Filters Australia
PSI Water Filters Australia
Rocdl-01 Laundry Wall Mount Replacement Cartridges
Includes NSF listed 1 micron polyspun sediment cartridge and Omnipure OMB-934-5M coconut carbon cartridge. $37.50 per...
Regular price $37.50
Regular price $37.50
available: -678
K2548-BB 10 Inch In-Line Re-Mineralizing Cartridge (Calcite) - K2548-BB 10 Inch In-Line Re-Mineralizing Cartridge (Calcite) - PSI Water Filters Australia
PSI Water Filters Australia
K2548-BB 10 Inch In-Line Re-Mineralizing Cartridge (Calcite)
1/4 Inch NPT female ports fitting. Service Life: 1 to 2 years.  Product comes complete, ready...
Regular price $40.00
Regular price $40.00
available: -340
Trio Deal 331 - Trio Deal 331 - PSI Water Filters Australia
PSI Water Filters Australia
Trio Deal 331
Replacement set for Model PSI-331 Omnipure OMB-934-5M coconut, is made from Coconut Shell Carbon, which creates...
Regular price $45.00
Regular price $45.00
available: -69
Re-mineralising cartridge drop in 10
PSI Water Filters Australia
Re-mineralising cartridge drop in 10"
This is a 9-3/4" re-mineralising cartridge to fit inside a 10" standard size housing which is...
Regular price $45.00
Regular price $45.00
available: 220
Nano Silver Carbon Block + Polyspun 1 Micron
PSI Water Filters Australia
Nano Silver Carbon Block + Polyspun 1 Micron
Suitable for any twin under-sink system replacement in our range, as well as many others if...
  • Anti bacterial
  • 5 Micron Carbon Block
  • 1 Micron Sediment Filter
  • Tank Water Suitable
Regular price $45.00
Regular price $45.00
available: -2
Remineraliser Alkaliser - Remineraliser Alkaliser - PSI Water Filters Australia
PSI Water Filters Australia
Remineraliser Alkaliser
Remineraliser/Alkaliser Cartridge 10" drop in style cartridge. Suitable for a standard 10" housing. Cartridge is filled...
Regular price $47.50
Regular price $47.50
available: -101
Omnipure Coconut (Omb-934-1m) + Polyspun - Omnipure Coconut (Omb-934-1m) + Polyspun - PSI Water Filters Australia
PSI Water Filters Australia
Omnipure Coconut (Omb-934-1m) + Polyspun
OMNIPURE Coconut, (OMB-934-1M) is made from Coconut Shell Carbon, which creates a better tasting water. Because...
  • USA made carbon cartridge
  • Coconut based carbon
  • 0.4 Micron
Regular price $50.00
Regular price $50.00
available: -1229
COUNTERTOP REVERSE OSMOSIS CARTRIDGE TWIN PACK - COUNTERTOP REVERSE OSMOSIS CARTRIDGE TWIN PACK - PSI Water Filters Australia
PSI Water Filters Australia
COUNTERTOP REVERSE OSMOSIS CARTRIDGE TWIN PACK
Twin Pack Of Cartridges For The Countertop Reverse Osmosis Includes CL10PF5 Sediment Filter CL10ROT40 Carbon Filter....
Regular price $50.00
Regular price $50.00
available: -57
Trio Preplacement set for - 019B DI RF, 020B DI LW and 020B DI GM - Trio Preplacement set for - 019B DI RF, 020B DI LW and 020B DI GM - PSI Water Filters Australia
PSI Water Filters Australia
Trio Preplacement set for - 019B DI RF, 020B DI LW and 020B DI GM
Trio Replacement set for PSI 019B DI RF,PSI 020B DI LW and 020B DI GM --...
Regular price $50.00
Regular price $50.00
available: -363
Vontron HP1812-75 Vontron HP1812-75
PSI Water Filters Australia
Vontron HP1812-75
Vontron HP1812-75 membrane. 75 Gallon per day/ 300 litres per day. Certified to NSF/ANSI 58
Regular price $50.00
Regular price $50.00
available: 95
Omnipure Omb-934-1mpb + Poly - Omnipure Omb-934-1mpb + Poly - PSI Water Filters Australia
PSI Water Filters Australia
Omnipure Omb-934-1mpb + Poly
SpecificationsOmnipure-OMB934 1M Lead ReductionMicron Rating >99% @ 1 _mFilter Dimensions 2.50@ O.D. x 1.25@ I.D. x...
  • USA made carbon Cartridge
  • Lead & Heavy metals reduction
  • Coconut based carbon
  • 0.4 Micron
Regular price $52.50
Regular price $52.50
available: -926
Vontron HP2012-100
PSI Water Filters Australia
Vontron HP2012-100
The Vontron HP2012-100 is an independently developed reverse osmosis element designed to treat low-salinity water sources...
Regular price $55.00
Regular price $55.00
available: 46
Matrikx ™ PB1 + 1 Micron Polyspun Sediment - Matrikx ™ PB1 + 1 Micron Polyspun Sediment - PSI Water Filters Australia Matrikx ™ PB1 + 1 Micron Polyspun Sediment - Matrikx ™ PB1 + 1 Micron Polyspun Sediment - PSI Water Filters Australia
PSI Water Filters Australia
Matrikx ™ PB1 + 1 Micron Polyspun Sediment
MATRIKX™ PB1, The Premier Performer, combines the fine particulate of 0.5 micron with heavy metal reduction...
  • Chloramine & Chlorine rated
  • Coconut based carbon
  • PFAS rated
  • NSF certfied carbon
Regular price $57.00
Regular price $57.00
available: -2343
Pentek Cbr2-10 + 1 Micron Polyspun Sediment - Pentek Cbr2-10 + 1 Micron Polyspun Sediment - PSI Water Filters Australia
PSI Water Filters Australia
Pentek Cbr2-10 + 1 Micron Polyspun Sediment
NOW MADE IN CHINA. PENTEK CBR2-10 (formally Us Filters) Carbon cartridge with Lead &heavy metal removal,...
  • Lead & Heavy metals reduction
  • 0.5 Micron rating
  • Cyst & Gardia Rated
  • NSF certified
Regular price $59.50
Regular price $59.50
available: -232
Omnipure Omb-934-1ml Chloramine Plus Poly - Omnipure Omb-934-1ml Chloramine Plus Poly - PSI Water Filters Australia
PSI Water Filters Australia
Omnipure Omb-934-1ml Chloramine Plus Poly
The Omnipure OMB-934-1ML Chloramine is a 1 micron absolute so it is 0.4 nominal chloramine, rated for heavy...
  • USA made carbon cartridge
  • Chloramine reduction
  • Coconut based carbon
  • 0.4 Micron
Regular price $67.50
Regular price $67.50
available: -544
Rocdu-01 Standard Undersink Reverse Osmosis Replacement Cartridge Deal - Rocdu-01 Standard Undersink Reverse Osmosis Replacement Cartridge Deal - PSI Water Filters Australia
PSI Water Filters Australia
Rocdu-01 Standard Undersink Reverse Osmosis Replacement Cartridge Deal
Includes: NSF listed 1 micron polyspun sediment cartridge, Omnipure OMB934-5M extruded carbon block 5 micron cartridge...
Regular price $68.00
Regular price $68.00
available: -378
Rocdu-02 Premium Undersink Reverse Osmosis Replacement Cartridge Deal - Rocdu-02 Premium Undersink Reverse Osmosis Replacement Cartridge Deal - PSI Water Filters Australia
PSI Water Filters Australia
Rocdu-02 Premium Undersink Reverse Osmosis Replacement Cartridge Deal
Includes: NSF listed 1 micron polyspun sediment cartridge, Omnipure OMB934-5M extruded carbon block 5 micron cartridge...
Regular price $70.00
Regular price $70.00
available: -735
6ex Replacement Cartridge Set 2nd Year Change - 6ex Replacement Cartridge Set 2nd Year Change - PSI Water Filters Australia
PSI Water Filters Australia
6ex Replacement Cartridge Set 2nd Year Change
6ex Replacement set 2nd year Change Includes: Polyspun 5 Micron, Polyspun 1 Micron, Matrikx CTO Chloramine...
Regular price $75.00
Regular price $75.00
available: -165
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