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Fish Tank Supplies > Fish Tank Water Purification > RO/DI Water Filters > Fish Tank Reverse Osmosis Filters and Combination RO/DI Systems

Aquarium Reverse Osmosis Filters


Aquarium reverse osmosis filters are a great investment if your tap water is high in heavy metals & impurities or if you need softer water. They can be used for drinking water or aquarium water changes - you won't need multiple additives to remove contaminants! They have a number of customization options like additional canisters, booster pumps and automatic shut-off valves for easy filling, so check out our replacement membranes, cartridges and customization parts.


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HM Digital DM-1 Dual TDS Meter (Spectrapure)
Marine Pro RO/DI System - 100 GPD (Spectrapure)
Marine Pro RO/DI System - 200 GPD (Spectrapure)
Marine Pro RO System - 100 GPD (Spectrapure)
HM Digital DM-1 Dual TDS Meter (Spectrapure)

$29.99
Marine Pro RO/DI System - 100 GPD (Spectrapure)

$219.99
Marine Pro RO/DI System - 200 GPD (Spectrapure)

$289.99
Marine Pro RO System - 100 GPD (Spectrapure)

$149.99
Marine Pro RO System - 200 GPD (Spectrapure)
MaxPure RO/DI System - 60 GPD (Spectrapure)
MaxPure RO/DI System - 90 GPD (Spectrapure)
MaxPure RO System - 90 GPD (Spectrapure)
Marine Pro RO System - 200 GPD (Spectrapure)

$199.99
MaxPure RO/DI System - 60 GPD (Spectrapure)

$242.00
MaxPure RO/DI System - 90 GPD (Spectrapure)

$255.00
MaxPure RO System - 90 GPD (Spectrapure)

$185.99
MaxPure RO System - 60 GPD (Spectrapure)
MAXCAP RO/DI System - 90 GPD (Spectrapure)
Pure-Flo II RO Unit - 24 GPD TFC - 2 Canister(ESU)
Pure-Flo II RO Unit - 50 GPD TFC - 2 Canister(ESU)
MaxPure RO System - 60 GPD (Spectrapure)

$175.00
MAXCAP RO/DI System - 90 GPD (Spectrapure)

$419.99
Pure-Flo II RO Unit - 24 GPD TFC - 2 Canister(ESU)

$145.99
Pure-Flo II RO Unit - 50 GPD TFC - 2 Canister(ESU)

$166.99
Pure-Flo II RO Unit - 50 GPD TFC - 3 Canister(ESU)
Pure-Flo II RO with Pump - 50 gpd - TFC - 3 Canister (ESU)
Pure-Flo II RO w/Pump-100 GPD TFC-3 Canister (ESU)
TFC RO Filter 24 GPD (Kent)
Pure-Flo II RO Unit - 50 GPD TFC - 3 Canister(ESU)

$199.99
Pure-Flo II RO with Pump - 50 gpd - TFC - 3 Canister (ESU)

$308.99
Pure-Flo II RO w/Pump-100 GPD TFC-3 Canister (ESU)

$338.99
TFC RO Filter 24 GPD (Kent)

$225.99
Max 24 Maxxima RO DI 24gpd (Kent)
Max 50 Maxxima RO DI 50gpd (Kent)
HI-S Maxxima 60gpd Clear Canister (Kent)
Kold Ster-II Fin-L-Filter System (Poly Bio)
Max 24 Maxxima RO DI 24gpd (Kent)

$313.99
Max 50 Maxxima RO DI 50gpd (Kent)

$348.99
HI-S Maxxima 60gpd Clear Canister (Kent)

$332.99
Kold Ster-II Fin-L-Filter System (Poly Bio)

$377.99

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