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Register now to receive a reminder email 12 months after placing an order.

Don't worry, you are not signing on to daily emails, as we do not send regular daily weekly or even monthly newsletters.

We will only contact you if we really feel you need to know something important about changes to our site or every now and then we send discount vouchers to get even better pricing on our already low priced products.

To receive your one-off 10% discount please enter your email below and click SUBSCRIBE. Wait a minute or so for the email to arrive. Open the email and click on Shop Now to be directed to our website. The 10% discount code will be automatically added to your order. If you don't get it then, just manually enter SUBSCRIBE&SAVE into the box in the checkout and it will also work.

Just a quick note to those who subscribe for a discount and then unsubscribe immediately. Yes, you will get the one off sign-up 10% discount, but by unsubscribing you will miss out on any future discount vouchers, and thre reminder email.

If you cannot find your product, then please either use the chat or email: kiaora@waterfiltersonline.co.nz, and we will be more than happy to help you.

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  • Drinking Water Systems & Parts
    Filter & Parts for Existing Systems
    • Cyst Removal Systems (NSF 53)
    • Replacement Filter Cartridges
    • Benchtop System Parts & Fittings
    • Undersink System Parts & Fittings
    • Hydrofit Quick Connect Fittings
    • Replacement Filtration Media
    • Reverse Osmosis Parts & Fittings
    Complete Water Filter Systems
    • Chlorine & Fluoride Reduction Systems
    • Car and Window Washing Systems
    • Housing Sets
    • Garden Hose Systems
    • Reverse Osmosis
    • Single Outlet Systems (Underbench/Benchtop)
    • Weather Cover
    • Whole House and Tank Systems
    System Maintenance
    Do it Yourself Water Test Kits
  • UV Systems & Parts
    Replacement Parts for Existing UV Systems
    • Replacement Lamps
    • Replacement Glass Sleeves
    • Replacement Orings & Seals
    • Replacement Ballasts & Power Supplies
    • Replacement Pre-Filters
    • Lamp & Filter Packages
    UV Systems Complete
    UVC LED Water Purifier
    Non Powered Bacteria Removal Systems
    How to Dispose of UV Lamps
  • Spa & Pool Filters
    Top 15 Sellers - Spa Pool Filters
    Polyester Pleated Spa & Pool Filters
    MicroFiber Pre-Filters for Sundance Spas
    Spa Fill Filters
    Pool and Spa Pool Filter Maintenance
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    Cartridge Connection Kit
    A - D
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    E - J
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    K - N
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Sediment Removal Systems

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Shop Water Filter Cartridges for All Brands

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Shower Filter

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Shower Filter System

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Shower Filters

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Single Outlet Water Filter Systems

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Sleeves by Length

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Sleeves by UV Brand

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Snug Tub Filter Collection – Clean Bath Water

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SpaWise

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Splenvue Lamps

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Splenvue Pin

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Splenvue Sleeves

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Stainless Steel Housings

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Steriflo Aquashield Lead/Pin

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Steriflo Lamps

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Steriflo Sleeves

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Sterilight S12Q-PA Compatible Kits

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Sterilight Sleeves

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Streak-Free Car & Window Washing Filters

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Stringwound

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Suitable NZ made replacement for HotSpring® Spas

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Sundance Spa Pre-Filter Accessories

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System & Water Filter Maintenance

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Top 15 Sellers - Spa Pool Filters

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Trevoli (Pumps Online) Lamps

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Trevoli Compatible

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Trevoli Whole House Compatible UV Kits

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Trojan Sleeves

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UB Bacteria Removal Systems

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UB Chlorine Taste And Odour Reduction Systems

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UB Configurable Systems (Tailored)

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UB Fluoride Reduction Systems

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UB Giardia & Cryptosporidium Removal Systems

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Under-Bench/Sink Parts & Accessories

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Underbench Complete Systems

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Undersink System Parts & Fittings

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Undersink UV (POU) - 1st Stage Pre-Filters

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Undersink UV (POU) - 3rd Stage Pre-Filters

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Undersink UV - 2nd Stage Pre-Filters

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UV Dynamics Sleeves

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UV Filter Glass Sleeve Replacements

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UV Filtration System Pre-Filter Replacements

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UV Light Water Filter Replacement Bulbs

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UV Oring & Seal Replacements

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UV Systems Sleeves

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UV Water Systems Lamps

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UVC LED Water Purifier

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Water Filters Online are master online resellers of quality water treatment systems and water filters. They are particulary fortunate to have a strong supply relationship with Magnum Filters Ltd, a renowned local manufacturer and exporter of quality pool and spa filters for over 40 years. Through all of our NZ suppliers, we have access to a massive range of water filter equipment ready to ship to all parts of NZ.

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