Most Popular
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TFG236 KDF/GAC Inline Water Filter – Town or Tank Water
Regular price $120.00 NZDRegular priceSale price $120.00 NZD -
10" Jumbo Sediment Filter Twin Pack – 20 + 1 Micron
Regular price $75.00 NZDRegular priceSale price $75.00 NZD -
20" Jumbo Sediment Filter Twin Pack – 20 + 1 Micron
Regular price $120.00 NZDRegular priceSale price $120.00 NZD -
HRV Premium Grade whole house filters
Regular price $150.00 NZDRegular priceSale price $150.00 NZD -
HRV Silver Grade whole house filters
Regular price $110.00 NZDRegular priceSale price $110.00 NZD -
10" Jumbo Sediment Filter Twin Pack – 20 + 5 Micron
Regular price $85.00 NZDRegular priceSale price $85.00 NZD -
RFC-BB ACTIVATED CARBON 10" JUMBO
Regular price $125.00 NZDRegular priceSale price $125.00 NZD -
20 micron x 6pc Pleated Watts USA
Regular price $210.00 NZDRegular priceSale price $210.00 NZD
Collection: Reverse Osmosis Domestic Systems
Reverse osmosis provides high-quality drinking water by separating dissolved contaminants through a fine membrane.
This collection contains our domestic and high-output direct-flow RO equipment, along with the matching replacement filters needed to keep compatible systems operating correctly.
Why choose reverse osmosis?
- Reduces a broad range of dissolved contaminants
- Improves drinking-water taste and clarity
- Suitable for homes, offices and higher-demand applications
- Direct-flow systems can deliver purified water without a bulky storage tank
Choose a system or replacement pack
If you are installing reverse osmosis for the first time, choose a complete system and confirm your water pressure, plumbing connection, available space and expected daily demand.
If you already own a Direct Flow RO system, check the exact model before ordering replacement filters. Replacement packs are model-specific and are not complete filtration systems.
Get the sizing right
Membrane output varies with incoming pressure, temperature and water quality. For help selecting a system, contact The Filter Guy with your water source, household or workplace demand, available space and any water-test information you have.
We can also quote larger or specialised RO systems that are not listed online.
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Direct Flow RO 800GPD Tankless Reverse Osmosis System
Regular price $950.00 NZDRegular priceSale price $950.00 NZD -
REPLACEMENT FILTER PACK FOR DIRECT FLOW 2550 RO
Regular price $300.00 NZDRegular priceSale price $300.00 NZD