Skip to main content
eBay Logo

Shop by category

Advanced
    • eBay Plus
    • eBay Deals
    • Find a Store
    • Help
    • Peters of Kensington
    • Sell
    • Watch ListExpand Watch list
      Loading...
      Sign in to see your user information
    • My eBayExpand My eBay
      • My eBay Summary
      • Recently Viewed
      • Bids/Offers
      • Watch List
      • Purchase History
      • Selling/Sold
      • Saved Searches
      • Saved Sellers
      • My Garage
      • My Messages
      • Get Exclusive Savings
    • Expand cart
      Loading...
      Something went wrong. View cart for details.
    {"modules":["unloadOptimization","bandwidthDetection"],"unloadOptimization":{"browsers":{"Firefox":true,"Chrome":true}},"bandwidthDetection":{"url":"https://ir.ebaystatic.com/cr/v/c1/thirtysevens.jpg","maxViews":4,"imgSize":37,"expiry":300000,"timeout":250}}

    There seems to be a problem serving the request at this time

    You are here

    • eBay
    • Pet Supplies
    • Fish Supplies
    • Aquarium Reverse Osmosis & Deionization

    Aquarium Reverse Osmosis & Deionization

    Side Refine Panel

    Shop by Category

    • Fish
    • Reverse Osmosis & Deionization
    • Air Stones
    • Aquariums
    • Air Pumps
    • Cleaning & Maintenance
    • CO2 Equipment
    • Decorations
    • Feeders
    • Filters
    • Filter Media & Accessories
    • Food
    • Gravel & Substrate
    • Health Care
    • Heaters & Chillers
    • Lights
    • Meters & Regulators
    • Tubing & Valves
    • UV Sterilisers
    • Water Pumps
    • Water Tests & Treatment
    • Other
    • All

    • Auction

    • Buy It Now

    • Best Match
    • Time: ending soonest
    • Time: newly listed
    • Price + postage: lowest first
    • Price + postage: highest first
    • Lowest price
    • Highest price
    • Distance: nearest first
    • List view

    113 results

      • Valve
      • Reverse Osmosis Unit
      • Marine
      • Aqua Medic
      • All Listings filter applied
    • Aquarium RO DI Water Filter Marine Reverse Osmosis Fish Tank RODI Filters System
      SPONSORED

      Aquarium RO DI Water Filter Marine Reverse Osmosis Fish Tank RODI Filters System

      AU $159.95 to AU $229.95
      Free postage
    • 50 75 100 180 GPD Reverse Osmosis Water Filter Membrane 1812 RO Element Filters
      SPONSORED

      50 75 100 180 GPD Reverse Osmosis Water Filter Membrane 1812 RO Element Filters

      AU $39.95 to AU $99.95
      Free postage
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FiltJF
      SPONSORED

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FiltJF

      AU $8.54
      Free postage
      or Best Offer
    • Aquarium RO DI Pure Water Filter Marine Reverse Osmosis Fish Tank Filters System
      SPONSORED

      Aquarium RO DI Pure Water Filter Marine Reverse Osmosis Fish Tank Filters System

      AU $236.95 to AU $379.95
      Free postage
    • Reverse Osmosis RO Water Filters Marine Fish RODI Resin Filter HRO3-D + DIVERTER

      Reverse Osmosis RO Water Filters Marine Fish RODI Resin Filter HRO3-D + DIVERTER

      AU $99.95
      Free postage
    • Reverse Osmosis Deioniser Filter | Fish Tank DI Water Filters | Drop RO TDS + QF

      Reverse Osmosis Deioniser Filter | Fish Tank DI Water Filters | Drop RO TDS + QF

      AU $24.95
      Free postage
    • Marine Aquarium Fish Tank Reverse Osmosis RO DI Fish Tanks Water Filter RODI HRO

      Marine Aquarium Fish Tank Reverse Osmosis RO DI Fish Tanks Water Filter RODI HRO

      AU $98.95 to AU $179.95
      Free postage
    • Reverse Osmosis Deioniser Filter | Aquarium DI Water Filters | Lower RO TDS + QF

      Reverse Osmosis Deioniser Filter | Aquarium DI Water Filters | Lower RO TDS + QF

      AU $29.95
      Free postage
    • Reverse Osmosis Filter Kit +/- RO RODI DI Membrane Water Filters HRO-D|G|A|GM

      Reverse Osmosis Filter Kit +/- RO RODI DI Membrane Water Filters HRO-D|G|A|GM

      AU $24.95 to AU $139.95
      Free postage
    • Reverse Osmosis Fish Filter RO DI Water Filters | Marine Aquarium RODI PRO-4-D

      Reverse Osmosis Fish Filter RO DI Water Filters | Marine Aquarium RODI PRO-4-D

      AU $193.95 to AU $249.95
      Free postage
    • Deionising Resin Ion Exchange RO DI Reverse Osmosis Aquarium Filter Refill Pack

      Deionising Resin Ion Exchange RO DI Reverse Osmosis Aquarium Filter Refill Pack

      AU $27.95 to AU $126.95
      Free postage
    • Reverse Osmosis RO DI Water Filter | Marine Aquarium Tank RODI Filters PRO-4-DJ

      Reverse Osmosis RO DI Water Filter | Marine Aquarium Tank RODI Filters PRO-4-DJ

      AU $269.95 to AU $429.95
      Free postage
    • Marine Aquarium Reverse Osmosis RODI Water Filters Reef Tank DI Filter PRO-5-DJ

      Marine Aquarium Reverse Osmosis RODI Water Filters Reef Tank DI Filter PRO-5-DJ

      AU $329.95 to AU $479.95
      Free postage
    • Aquarium Reverse Osmosis RO DI Water Filters | RODI Fish Tank Filter PRO-5-DJ
      SPONSORED

      Aquarium Reverse Osmosis RO DI Water Filters | RODI Fish Tank Filter PRO-5-DJ

      AU $349.95 to AU $499.95
      Free postage
    • Water Filters Reverse Osmosis RO DI | Marine Aquarium RODI Fish Filter PRO-4-DJ
      SPONSORED

      Water Filters Reverse Osmosis RO DI | Marine Aquarium RODI Fish Filter PRO-4-DJ

      AU $249.95 to AU $409.95
      Free postage
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FiltFZ
      SPONSORED

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FiltFZ

      AU $7.11
      Free postage
      or Best Offer
    • Fish Tank Filter Reverse Osmosis RO DI Water Filters | Marine Tanks RODI PRO-4-D

      Fish Tank Filter Reverse Osmosis RO DI Water Filters | Marine Tanks RODI PRO-4-D

      AU $163.45 to AU $199.45
      Free postage
    • 50GPD Marine Fish Reverse Osmosis Water Filter + RO Membrane + Filter + DI Resin

      50GPD Marine Fish Reverse Osmosis Water Filter + RO Membrane + Filter + DI Resin

      AU $89.95
      Free postage
      43 sold
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $7.70
      Free postage
    • 50GPD 75GPD 100GPD 150GPD Reverse Osmosis Water Filter Membrane RO Filters

      50GPD 75GPD 100GPD 150GPD Reverse Osmosis Water Filter Membrane RO Filters

      AU $39.95 to AU $69.95
      Free postage
    • Reverse Osmosis RO DI Water Filters | Marine Aquarium RODI Fish Filter PRO-3-DJ

      Reverse Osmosis RO DI Water Filters | Marine Aquarium RODI Fish Filter PRO-3-DJ

      AU $159.95 to AU $249.95
      Free postage
    • Push Fit Pipe Tube Fittings Y-shape Elbow Tee Connector For Water Aquarium 5PCS

      Push Fit Pipe Tube Fittings Y-shape Elbow Tee Connector For Water Aquarium 5PCS

      AU $3.15 to AU $5.86
      AU $2.19 postage
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water Fil JYA Fr

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water Fil JYA Fr

      AU $8.04
      Free postage
      or Best Offer
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterY-sh

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterY-sh

      AU $7.17
      AU $2.86 postage
      or Best Offer
    • 5PCS Push Fit Pipe Elbow Tube Tee Y-shape Valve Connector For Water Aquarium

      5PCS Push Fit Pipe Elbow Tube Tee Y-shape Valve Connector For Water Aquarium

      AU $3.15 to AU $5.76
      AU $2.19 postage
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $5.04
      Free postage
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $7.16
      AU $0.77 postage
    • Seachem HydroTote 20L Collapsible Water Jug Transport & Store Aquarium Water

      Seachem HydroTote 20L Collapsible Water Jug Transport & Store Aquarium Water

      AU $32.99 to AU $57.99
      Free postage
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterY*mx
      SPONSORED

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterY*mx

      AU $14.47
      Free postage
      or Best Offer
    • Refillable RO/DI Empty Inline Water Filter Cartridge/RO/DI(2"x10"/Clear/Fittings
      SPONSORED

      Refillable RO/DI Empty Inline Water Filter Cartridge/RO/DI(2"x10"/Clear/Fittings

      AU $16.30 to AU $18.64
      AU $26.52 postage
    • Mixed Bed Resin Deionising Cartridge
      SPONSORED

      Mixed Bed Resin Deionising Cartridge

      AU $58.95
      AU $7.95 postage
      3 watching
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterY*li
      SPONSORED

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterY*li

      AU $14.47
      Free postage
      or Best Offer
    • GISON Portable Air Drilling Machine GPD-231

      GISON Portable Air Drilling Machine GPD-231

      AU $2,925.99
      Free postage
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $6.85
      Free postage
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water Fil THH BA

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water Fil THH BA

      AU $7.39
      Free postage
      or Best Offer
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water Filter>

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water Filter>

      AU $7.70
      AU $0.42 postage
      or Best Offer
    • 3/8" Adjustable Plastic Float Valve for Aquarium, RO DI Reverse Osmosis System

      3/8" Adjustable Plastic Float Valve for Aquarium, RO DI Reverse Osmosis System

      AU $11.75
      AU $6.59 postage
      Only 1 left!
    • 1~4Tube Quick Connect High Pressure Switch Pump RO Water Filter Reverse Osmosis>

      1~4Tube Quick Connect High Pressure Switch Pump RO Water Filter Reverse Osmosis>

      AU $11.91
      Was: AU $12.95
      Free postage
      or Best Offer
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch
      SPONSORED

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $7.85
      Free postage
    • Mixed Bed Resin Deionising Re-Fillable Inline Cartridge
      SPONSORED

      Mixed Bed Resin Deionising Re-Fillable Inline Cartridge

      AU $38.00
      Free postage
    • Portable RODI 75 GPD Aquarium Reef Reverse Osmosis Water Filter System DI Resin

      Portable RODI 75 GPD Aquarium Reef Reverse Osmosis Water Filter System DI Resin

      AU $117.19
      Was: AU $123.36
      AU $70.36 postage
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterYUY2

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FilterYUY2

      AU $13.59
      Free postage
      or Best Offer
    • 1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FiltSG

      1PC Auto Shut Off 4 Way 1/4 Port Valve For RO Reverse Osmosis Water FiltSG

      AU $13.90
      Free postage
      or Best Offer
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $6.01
      Free postage
    • Aqua Medic Platinum Line Plus 400l / Tag For Sea And Freshwater Aquariums Osmose

      Aqua Medic Platinum Line Plus 400l / Tag For Sea And Freshwater Aquariums Osmose

      AU $594.24
      AU $82.94 postage
    • 1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      1/4" Low Pressure Quick Reverse Osmosis Contact Switch Water Booster Pump Switch

      AU $6.29
      Free postage
    • 5PCS Push Fit Pipe Fittings Elbow Tee Y-shape Valve Connector For Water Aquarium

      5PCS Push Fit Pipe Fittings Elbow Tee Y-shape Valve Connector For Water Aquarium

      AU $3.15 to AU $5.76
      AU $2.19 postage
    • 1/4" Tube Quick Connect High Pressure Switch Pump RO Water Filter Reverse Li

      1/4" Tube Quick Connect High Pressure Switch Pump RO Water Filter Reverse Li

      AU $11.68
      Was: AU $12.69
      Free postage
      or Best Offer

    Results pagination - page 1

    1. 1
    2. 2
    3. 3
    You may also like
    Slide {current_page} of {total_pages} - You may also like
    • Seachem Aquarium Water Tests & Treatment

    • Aquarium Water Tests & Treatment

    • API Aquarium Water Tests & Treatment

    • Aquarium Reverse Reverse Osmosis Units

    • Aqua Medic Aquarium Reverse Osmosis & Deionization

    Additional site navigation

    • About eBay
    • Announcements
    • Community
    • Media Centre
    • Seller Centre
    • Policies
    • Advertise
    • Help
    • Site Map
    Copyright © 1995-2022 eBay Inc. All Rights Reserved. User Agreement, Privacy, Cookies and AdChoiceNorton Secured - powered by DigiCert