Aquarium RO (Reverse Osmosis) Filter Cartridges
Ensure consistently clean, purified water for your fish tank with our range of replacement RO filter cartridges. Designed for use in aquarium reverse osmosis systems, these cartridges remove harmful contaminants like chlorine, chloramine, sediments, heavy metals, and organic compounds that can harm aquatic life.
Choose from high-quality sediment filters, carbon block cartridges, and deionisation (DI) resin refills to maintain the efficiency of your RO system. Regular replacement of cartridges is essential to keep your system functioning at its best and ensure stable water parameters for both freshwater and marine aquariums.
RO Filter Cartridge for Aquariums – Ultra-Pure TDS 0 Water (For Standard System)
$38.97
Our best-selling RO filter cartridge is specially designed for aquarium use, removing harmful substances like copper, phosphates, ammonia, nitrates, and chlorine. It reduces GH and KH to zero, giving you...
Aquarium RO Membrane Cartridge 100G – Quick-Connect 10 & 11 Inch
$26.99 – $32.99
This 100G RO membrane cartridge is the final stage in most aquarium reverse osmosis systems, effectively removing all remaining contaminants and reducing TDS to 0. Designed with a 0.0001 micron...
Aquarium RO Post-Carbon Filter Cartridge – 10 & 11 Inch
$18.99 – $19.99
This post-carbon filter cartridge uses high-grade activated carbon with a nominal 5-micron rating to remove chlorine, odours, and heavy metals. Designed as the final polishing stage in most standard RO...
Aquarium RO UF Membrane Cartridge – 10 & 11 Inch Quick-Connect
$23.45 – $24.54
Our Aquarium RO UF (Ultrafiltration) Membrane Cartridge helps purify water by reducing microbial cysts, chlorine, odours, sediment, and more. Designed with a convenient ¼" quick-connect fitting, it fits most standard...
Aquarium RO Sediment Filter Cartridge – 10 & 11 Inch Quick-Connect Pre-Filter
$23.95 – $24.83
Our RO Sediment Filter Cartridge efficiently removes large and fine particles such as sand, dirt, rust, and silt from your water supply. Featuring a ¼" quick-connect fitting, it’s compatible with...
Aquarium RO Sediment Filter Cartridge – Quick-Connect 10 & 11 Inch.
$23.45 – $24.64
Our aquarium sediment filter cartridge is typically the first stage in a reverse osmosis system, acting as a pre-filter to catch unwanted particles like silt and rust. Removing these larger...
Aquarium RO Carbon Block Filter Cartridge – Quick-Connect 10 & 11 Inch
$23.56 – $24.87
Our aquarium carbon block filter cartridges use high-quality activated coconut carbon with a 5-micron nominal rating to remove chlorine, odour, ozone, fluorides, and dissolved organic solutes. These filters make water...
Aquarium RO Pre-Carbon Filter Cartridge – 10 & 11 Inch ¼” Quick Connect
$18.99 – $19.99
This pre-carbon filter cartridge uses high-quality coconut carbon with a nominal 5-micron rating to effectively remove chlorine, odour, and taste from tap water. Ideal for use as the second stage...