Affordable Filters & Parts For
Your Water Filtration System

My Cart:

0 item(s) - $0.00
You have no items in your shopping cart.


E sales@affordablefilters.co.nz

T (64) 9 827 1409

Residential UV Water Filter System

Please scroll down to view individual products

The UV Water Systems residential filter system is designed for untreated water such as stored rain, spring, bore and river water. In order to achieve the required water clarity of above 70% UV transmission and also to achieve New Zealand drinking water standards, filters must be used before the UV. In most cases 3 filters should be used on most untreated water before the water flows into the UV chamber. This filters the water to a high degree and removes floating matter that may effect the water turbitity. The most common prefiltration include the following 3 filters:

  • • 5 micron pleated paper filter for removal of sands and sediment.
  • • 5-micron coconut carbon: Used for the elimination of taste, smell, discolouration and sprays.
  • • 1-micron melt-blown: This filter is used to eliminate any traces of mud and will ensure your drinking water has a clarity level that is greater than 1 NTU.


The UV will optimally work provided that the calculation relating to the UV chamber length, width and water flow rate have been calculated correctly. In addition to this the lamp wattage and water clarity or turbitity also need to be calculated in.

  • • A 40 watt lamp is sufficient for a small house or batch with 2 or 3 occupants.
  • • A80 watt lamp is more satisfactory for larger houses with a couple of showers and 5 or more occupants.


A question often asked is how long the filters will last between changes. This depends on the quality of the water that enters the system. For example if your gutters are clean you have no over hanging trees, keep your water tank clean etc then the filter elements will last much longer.

In most cases the average life is 6-9 months however if your house is newer then you could get 12 months between changes. It is best not to leave it longer than this.

The filters are designed to remove and store contaminants from the water, therefore, it should be noted that these cannot just be rinsed out, they do require replacing. The 3 filters must be replaced and changed together. You should not mix a dirty filter with a clean filter. One exception is that the pleated paper can be rinsed out with a hose once or twice before it needs to be replaced.

We recommend that if your water is hard to invest in a salt brine softener.

Below is a list of all the regions in New Zealand we deliver to: Bay of Plenty, Canterbury, Coromandel, Hawkes Bay, King Country, Manawatu-Wanganui, Marlborough, Northland, Otago, Southland, Taranaki, Waikato, Wellington, West Coast.


Our parts and systems are also supplied to all major towns and cities in New Zealand which include:  Ashburton, Auckland, Blenheim, Cambridge, Carterton, Christchurch, Dunedin, Gisborne, Greymouth, Hamilton, Hastings, Invercargill, Lower Hutt, Masterton, Mount Manganui, Napier, Nelson, New Plymouth, Queenstown, Palmerston North, Porirua, Rotorua, Taupo, Tauranga, Timaru, Tokoroa, Upper Hutt, Wanaka, Wellington, Whanganui, Whangarei, Whakatane.


We also supply to all country and rural areas.

6 Item(s)

Grid  List 

  1. A4 fits into compact spaces

    WSA4P - 4 Filter Compact UV Water Filtration System with Bypass (no cover)

    Upmarket compact design for apartments/boats/RV's

    Learn More
    Excl. Tax: $1,720.00 Incl. Tax: $1,978.00
  2. D2 30 Lpm UV System

    WSD2 - 2 Filter Residential UV Water System (with cover)

    A low cost but good quality system for 2 people / single bathroom

    Learn More
    Excl. Tax: $1,100.00 Incl. Tax: $1,265.00
  3. B2 for single bathroom

    WSR2P - 2 Filter Residential UV Water System (with cover)

    Ideal size for 2 people / single bathroom

    Learn More
    Excl. Tax: $2,280.00 Incl. Tax: $2,622.00
  4. R3 installed in Garage Basement

    WSR3P - 3 Filter 80 Lpm Residential UV System

    The 'benchmark Residential Rainwater UV & Filtration System'

    Learn More
    Excl. Tax: $2,380.00 Incl. Tax: $2,737.00
  5. WSR4 Residential UV Filter System

    WSR4 - 4 Filter 80 Lpm Residential UV Water System

    For twin bathroom residences

    Learn More
    Excl. Tax: $5,000.00 Incl. Tax: $5,750.00
  6. WSR4N

    WSR4N - 4 Filter 50 Lpm UV System NSF 55 Class A & NSF 42

    For schools & restaurants Learn More
    Excl. Tax: $6,500.00 Incl. Tax: $7,475.00

6 Item(s)

Grid  List