Specialising in water filter and purification systems for the Perth Metro & Western Australian communities. Having over 15 years combined experience, Crystal Water knows quality. Clean, Pure, & Chemical free, the way water should be!


7 Ivanhoe Street
Golden Bay WA 6173

Contact Info

Email: [email protected]
Phone: +61 8 6244 1300


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Twin Undersink Water Filter System

The Twin Undersink water filter systems from Crystal Water are economically priced, making these water filter systems affordable. The Twin Undersink Water Filters are great for people that do not have too much work top space and require an efficient two stage water filtration process. These twin undersink models work quietly and efficiently while being out of sight under the kitchen sink.

Crystal Water’s twin undersink systems have the following:

  • Polypropylene housing
  • Polypropylene spun pre filter
  • Matrikx™ Pb1 carbon cartridge
  • Pressure Limiting Valve
  • Diverter tap with On/Off attached to your main water faucet line

The main advantages of a twin undersink water filter systems are that they can be installed very easily, are cost effective to maintain, are perfectly suitable if you want something non-intrusive and hidden away below your kitchen sink.

Buying a twin undersink water filter system from Crystal Water is a wise investment. Our housings are certified to Australian Standards and come with a 12 month warranty so you know that your water filter system is reliable and will last a long time to come.

Crystal Water have upgrade faucets available. If you need more help choosing the right faucet for your twin undersink filter system, please call our experts on 08 6244 1300.

The Two Stage Process

The first stage stage of the filtration process is a cartridges that is constructed from virgin polypropylene which is spun and melted simultaneously. This innovative technique means there is no centre core to restrict filter performance. Precise depth filtration is achieved through graded density construction. The polypropylene is compatible with most liquids and are highly effective for sediment, rust, sand, silt, algae removal. Polypropylene have no chemical resideues. Extra high performance and absolute rated cartridges available.


  • Graded depth filtration
  • Protects appliances and health with sediment free water
  • Insures the extended life of the carbon filter
  • Flows up to 180 litres/ minute
  • Available in 1, microns
  • Temperature rating up to 64 degree Celsius.

The Second Stage Process

The second stage of the Twin Undersink water filter system is fitted with a Matrikx™ Pb1 cartridge.

MATRIKX® Pb1® extruded activated carbon filters reduce soluble lead using an ion-exchange filter medium with high specificity for soluble lead. Particulate filtration is used to intercept insoluble lead-containing particles. Standard 2.50” O.D. x 10” L filters will reduce lead, meeting the performance requirements of NSF/ANSI Standard 53 protocol for over 2,500 gallons when operating at a flow of 0.75 GPM.
Manufactured with KX®’s proprietary extrusion process, MATRIKX® Pb1® filters offer high levels of chemical reduction in potable drinking water, including chlorine taste and odor.
MATRIKX® Pb1® filters meet NSF/ANSI Standard 53, Turbidity and Cyst Reduction, including Cryptosporidium, Giardia, Entamoeba and Toxoplasma.

MATRIKX® Pb1® filters consist of activated carbon particles fused into a uniform block with enhanced adsorptive capacity and efficiency. MATRIKX® Pb1® filters flow in a radial (outside-to-inside) direction, providing increased dirt-holding capacity and low pressure drop. Unlike granular activated carbon (GAC) filters, MATRIKX® Pb1® cartridges will not channel or bypass due to the extreme uniformity of their extruded activated carbon core. Service life of the MATRIKX® Pb1® filter is greatly extended by a pre filtration medium.

  • No channeling
  • No fluidising
  • No bypassing
  • Lowest extractable, pure materials of construction
  • Maximum service life and resistance to fouling
  • Graded density pre filtration design
  • Manufactured using FDA-compliant materials
  • Colour coded one-piece gasket and end cap

MATRIKX® Pb1® is a powerful, multifunctional filter cartridge for residential and commercial water treatment systems.

MATRIKX® filters are designed to fit most standard household and commercial or industrial housings. This cartridge must be placed in an appropriate housing and ushed for a minimum of 5 minutes prior to use.


Weight2.7 kg
Dimensions30 × 16 × 35 cm


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