20" JumboWaimana Water
Waiora Ultra III Whole House UV Filter System by Waimana
Suits a medium to large home · 20" JumboHelp me choose
What size is my home? Small to medium: 1–2 bathrooms, up to 3 bedrooms. Medium to large: 2+ bathrooms, 4+ bedrooms.
$2,560.00incl. GST
Our promise: if it's not right, we'll put it right.
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Email us a photo of your current setup or water source and we’ll point you to the right system.
- NZ owned & operated
- Most orders dispatched same or next day
- Click & collect from Te Rapa, Hamilton
- Brand
- Waimana Water
- Size
- 20" Jumbo
- Type
- Whole House Filters with UV
- SKU
- Ultra III
- Stock
- In stock
What it removes
Filtered and UV-treated water at every tap
The Ultra III removes sediment, silt, tastes and odours, then treats the water with UV before it reaches your taps.
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Sediment, dirt and rust
Larger sediment, dirt, rust and suspended particles.
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Fine silt
Fine sediment and silt down to 1 micron.
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Tastes and odours
The carbon block helps reduce unwanted tastes and odours.
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Bacteria and viruses
The UV stage treats bacteria, viruses and other micro-organisms, with no chemicals added.
How it works
Three stages, then UV
Water passes through each filter stage in order, then the UV chamber, before it reaches every tap in the house.
- Water in
Stage 1
Coarse sediment
Pleated sediment cartridge
20" Jumbo20 micronWaimana 20PL20
Captures larger sediment, dirt, rust and suspended particles to protect the finer stages.
Stage 2
Fine sediment
Polyspun sediment cartridge
20" Jumbo1 micronWaimana 20PP01
Captures the fine silt and particles that get past Stage 1. Water reaches the carbon block clear.
Stage 3
Carbon block
Carbon block cartridge
20" Jumbo5 micronWaimana 20CTO05
Helps reduce unwanted tastes and odours.
Stage 4
UV treatment
48W UV chamber
30 mJ/cm²Flow-activated
The filtered water passes through the UV chamber, which treats it for bacteria, viruses and other micro-organisms with no chemicals added. The lamp only runs while water is flowing.
- Filtered, UV-treated water to every tap
UV treatment
Flow-activated 48W UV
The 48W lamp delivers a 30 mJ/cm² UV dose at up to 45 L/min. It treats the water for bacteria, viruses and other micro-organisms without adding chemicals.
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Runs only when needed
The flow switch turns the lamp on when water flows and off when it stops.
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Longer lamp life
The lamp only runs while water is flowing.
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Lower power use
The lamp is off between uses.
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No warm water in the chamber
Water doesn't sit and warm in the chamber between uses.
- UV lamp
- 48W
- UV dose
- 30 mJ/cm²
- Max flow
- 45 L/min
- Activation
- Flow switch, on when water flows, off when it stops
- Power supply
- 240V
- Warranty
- 3 years (the lamp is a consumable)
Looking after the UV
- Clean the quartz sleeve whenever the UV lamp is inspected.
- Replace the UV lamp every 12 months.
- UV needs clear water. The filter stages before it remove the sediment that would block the UV light.
Fit check
Is it right for my home?
A quick check before you buy.
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On rainwater or tank water
Good fitSuits rainwater tank supplies.
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On bore water
Good fitSuits bore-water supplies within the rated pressure and temperature limits.
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On town (mains) water
Good fitSuits mains water supplies.
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Home size
Good fitLarge family homes and high-demand households. Up to 45 L/min.
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Installing outdoors
Not this oneInstall the standard Ultra III indoors or under cover. The Ultra III Shield adds a protective cover for outdoor installs.
Ultra III Shield
$3,070.00
See the Ultra III Shield
Compare
Compare the Ultra III options
Same filter stages and 48W UV. The Shield adds a protective cover and two pressure gauges for indoor and outdoor installs. The bundle ships as two units.
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$1,560.00
Stages 3 + UVCartridge size 20" JumboUV lamp 48WMax flow 45 L/minWhere it goes Indoors or protectedPre-assembled No, ships as 2 units -
You're viewing
Ultra III
$2,560.00
Stages 3 + UVCartridge size 20" JumboUV lamp 48WMax flow 45 L/minWhere it goes Indoors or under coverPre-assembled Yes, on one wall bracketConnection hose 25mm, includedYou're viewing -
$3,070.00
Stages 3 + UVCartridge size 20" JumboUV lamp 48WMax flow 45 L/minWhere it goes Indoors and outdoorsPre-assembled Yes, on one wall bracketConnection hose 25mm, includedExtras Cover + 2 pressure gauges
Running costs
What it costs to run
One Ultra III service kit has the three cartridges and the 48W UV lamp.
Ultra III service kit
$410.00per kit, incl. GST
- 1x Waimana 20PL20 – 20 micron polypleated sediment (20" Jumbo)
- 1x Waimana 20PP01 – 1 micron polyspun sediment (20" Jumbo)
- 1x Waimana 20CTO05 – 5 micron carbon block (20" Jumbo)
- 1x 48W UV lamp
Fit a new service kit every 12 months, so the cartridges and the UV lamp are changed together. Clean the quartz sleeve at each lamp change.
Specs
Specs and what's in the box
- Stages
- 3 + UV
- Stage 1
- 20µm polypleated sediment
- Stage 2
- 1µm polyspun sediment
- Stage 3
- 5µm carbon block
- Housing size
- Three 20" Jumbo housings
- UV lamp
- 48W
- UV dose
- 30 mJ/cm²
- Max flow
- 45 L/min
- Max pressure
- 116 PSI / 8 bar
- Operating temperature
- 2–40°C
- Connections
- 1" / 25mm BSP
- Power supply
- 240V
- Mounting
- Wall-mounted, arrives assembled
- Dimensions
- 590 × 220 × 730mm
- Where it goes
- Indoors or under cover
- Not included
- Connecting fittings and bypass valves
- Warranty
- 3 years
What's in the box
- Heavy-duty wall bracket
- Three 20" Jumbo filter cartridges
- 48W UV lamp
- Flow-activated ballast
- Flow switch
- 25mm connection hose
- Filter wrench
- Thread tape
Common questions
What is the difference between the Ultra III and the Ultra III Shield?
Both give the same filtration, UV treatment and flow rate. The Shield adds a protective cover and two pressure gauges, so it suits indoor and outdoor installation.
Can the standard Ultra III go outdoors?
No. Install it indoors or under cover. Choose the Ultra III Shield for an outdoor spot.
What does flow-activated UV do?
The lamp only switches on when water is flowing. That lowers power use, extends lamp life and stops water warming in the chamber.
Does UV change the taste of the water?
No. UV treats the water without adding chemicals or changing its taste. The carbon block is what helps with taste and odour.
How often do I change the cartridges and the lamp?
Every 12 months. The service kit has the cartridges and the UV lamp, so you change them together. Clean the quartz sleeve at each lamp change.
Still not sure?
Tell us about your home and water supply and we'll point you to the right system.
Full product details
Read the full description
The Waiora Ultra III, made by Waimana, filters your water in three stages, then treats it in a 48W UV chamber. It's rated at 45 L/min, which suits large households.
The stages are a 20 µm polypleated cartridge, a 1 µm polyspun sediment cartridge and a 5 µm carbon block, all 20" jumbo. The UV dose is 30 mJ/cm², and a flow switch helps stop the UV running when no water is flowing. Ports are 1 inch (25 mm) BSP, maximum pressure is 116 psi (8 bar), and it runs on 240 V.
Change the filter cartridges and the UV lamp every 12 months, and clean the quartz sleeve at each lamp change. 3-year manufacturer's warranty covering the UV chamber, housings and workmanship.
We're NZ owned in Te Rapa, Hamilton. If it's not right, we'll put it right.
Replacement cartridges
Takes 20" Jumbo cartridges
When it is time for a change, these are the cartridges that fit. Subscribe on eligible cartridges and save up to 15%.
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