Compare canister filters, HOBs, skimmers and rollmats through specs, prices and the tanks using them.
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892 matching items · Most used first
FilterBulk Reef Supply
The BRS Mesh Media Bag with Draw String is a reusable 200-micron nylon mesh bag for holding loose filter media such as carbon, GFO, or Purigen in sumps and AIO chambers where a reactor won't fit. The draw string keeps media contained while water flows through; available in 4x8 in. (4.25 cups), 4x14 in. (9.5 cups), and 7x16 in. (32 cups) sizes, and doubles as a filter sock.
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FilterBulk Reef Supply
The BRS Reactor Jumbo Refillable Cartridge is a 10-inch clear, refillable cartridge modified for use with BRS Jumbo Reactors. It includes one clear cartridge and two installed foam disks, and holds 6 cups (1419 mL) of media for saltwater or freshwater use.
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FilterBulk Reef Supply
A 10-inch clear refillable cartridge modified for use with old-style BRS single, deluxe, and dual reactors, including one clear cartridge and three foam disks (installed). It is suited to CO2 absorption media, GFO, carbon, and other loose media, and is an alternative to the newer hard-shell cartridge style.
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FilterBulk Reef Supply
The BRS Universal Carbon Block Filter (1 micron) is an NSF-certified replacement carbon cartridge for RO/DI systems, made with high-performance catalytic activated carbon and a proprietary binder that delivers strong chloramine, chlorine, VOC, and chemical adsorption performance. With 1-micron nominal filtration, 30% more carbon than standard blocks, and suitability for chloramine-, chlorine-, and well-water sources, it installs in standard 2.5" x 10" housings.
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FilterBulk Reef Supply
BRS Bulk Deionization Resin is nuclear-grade mixed-bed DI resin (non-color-changing) that serves as the final stage of an RO/DI unit to reduce total dissolved solids to zero. Sold in a 1.25 lb single-cartridge refill or a 1.5-gallon (7.5 lb) bulk bag that fills six standard 10-inch refillable cartridges, packed in foil-lined Mylar bags with a 2-year unopened shelf life.
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FilterBulk Reef Supply
BRS color-changing mixed-bed DI resin is the final stage of an RO/DI unit, reducing total dissolved solids (TDS) to zero; the beads shift from blue to brown as they exhaust so you can tell when to change the cartridge. Sold in a 1.25 lb single-cartridge refill or a 1.5-gallon (7.5 lb) bulk bag that fills six standard 10-inch refillable cartridges, packed in foil-lined Mylar bags with a 2-year unopened shelf life.
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FilterBulk Reef Supply
The Fiji Cube Refugium Baffle Kit is a DIY sump conversion kit that turns a standard glass aquarium tank into a fully functional sump; it includes cast acrylic, silicone-ready baffle slots for a protein skimmer, media reactor, and refugium sections, an adjustable water level to match skimmer height requirements, media trays with bio-foams, and filter sock holders (tank not included).
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FilterAquaReady
The AquaReady Bullet-1 Hang-On-Back Protein Skimmer uses a Sicce SHARK Nano needlewheel pump in a compact 4.9 x 3.1 inch cell-cast acrylic body, rated for aquariums up to 30 gallons with light bioload or 20 gallons with heavy bioload.
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FilterAquaReady
The AquaReady Bullet-2 is a hang-on-back protein skimmer rated for 30 to 50 gallons. Its compact bullet-shaped acrylic body houses a Sicce SHARK needle wheel pump that generates fine bubbles for efficient protein extraction, plus an air silencer for quiet operation.
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FilterAquaReady
The AquaReady Bullet-3 is a hang-on-back protein skimmer designed for aquariums between 40 and 80 gallons. It features a high-performance Sicce SHARK 1.0 needlewheel pump, durable cell-cast acrylic construction, an air silencer and silicone noise dampeners for ultra-quiet operation, and a compact 7.7 x 7.5-inch footprint.
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FilterReef Octopus
The Reef Octopus C2T-90 Universal CO2 Scrubber is a universal reactor that helps control pH levels in a reef tank by connecting to the air intake of a protein skimmer; ideal pH around 8.3 for optimal coral growth. Supports stable pH water levels; dual valve control outlets; durable acrylic construction; sealed airtight environment preserves solution potency; compact profile fits under the tank; barbed intake for optional recirculation setup; 3.5 in diameter, 6.7x5.2 in footprint, 17 in height, 0.26 US gal capacity.
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FilterMaxspect
Maxspect Nano-Tech Ca/Mg Bio-Spheres are 1 kg of inert ceramic bio-media infused with calcium, magnesium, potassium, iron, boron, and zinc, fired above 2300°F for a strong, long-lasting structure. They stimulate nitrifying bacteria colonies, improve water clarity, and replenish essential minerals for freshwater fish such as discus; recommended for freshwater aquariums only.
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FilterMaxspect
Maxspect Nano-Tech Ca/Mg Bio-Spheres are a 2kg inert ceramic biological filter media fire-cured above 2300°F for strength and long life, infused with calcium, magnesium, potassium, iron, boron, and zinc. The minerals replenish water essential for many freshwater fish such as discus, while the porous structure hosts nitrifying bacteria and improves water clarity; recommended for freshwater aquariums only.
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FilterAquaforest
Aquaforest Carbon is a high-quality steam-activated granular carbon for marine and freshwater aquariums. It removes impurities, discoloration, medication residues, and compounds from the chemical competition between corals, and because it is steam-activated it contains no phosphate.
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FilterTropic Marin
Tropic Marin Carbon is a highly efficient activated carbon pellet for use in fresh and marine water aquaria; combats yellow matter and harmful substances from the aquarium water so light penetrates unfiltered to corals, plants, and fish, bringing out their natural colors. Powerful adsorption capacity without releasing excessive phosphates or silicates. 400 g sufficient for 800 L; for continuous use filter ~1% of tank volume per hour through the carbon; change after no more than 8 weeks; for rapid treatment (e.g. after medications), run through a rapid-flow filter for 1-3 days.
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FilterFluval
Carbon-impregnated foam filter pads made for Fluval FX2, FX4, FX5, and FX6 canister filters. Traps small particles and debris mechanically while the carbon removes odors, discoloration, heavy metals, and organic contaminants. 2-pack.
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FilterPenn-Plax
The Cascade Pro Series III Canister Filter is a quiet, compact canister filter for fresh and saltwater aquariums up to 100 gallons, delivering 350 GPH with quick priming and adjustable flow control. It comes preloaded with floss, bio sponge, carbon pads, and ceramic rings in 4 interlocking media baskets, plus 360-degree rotating detachable valves.
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FilterMatrikx
A case of 20 MATRIKX CTO Plus 1-micron carbon blocks (10 x 2.5 inch) for RO/DI systems; NSF certified with high VOC and chemical adsorptive capacity, rated for 20,000 gallons at 1 GPM.
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FilterMatrikx
The MATRIKX CTO 5 Micron Carbon Block (10 x 2.5 in, case of 20) removes chlorine, taste, odor, and organic chemicals while providing sediment filtration, made from high-purity acid-washed activated carbon for standard 10-inch RO units.
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FilterBulk Reef Supply
Case of 25 BRS Universal Carbon Block Filters with 1 micron nominal filtration for RO/DI systems. High performance catalytic carbon blocks deliver industry-leading chloramine and chlorine reduction with 30% more carbon than standard blocks, and are NSF certified.
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FilterBulk Reef Supply
A case of 25 carbon block filter cartridges rated at 5 microns for chlorine and VOC (volatile organic compound) removal. They are used as pre-filters in aquarium RO/DI water purification systems.
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FilterGE Water Technologies
This is a case of 40 GE Purtrex depth sediment filters (2.5 inches x 10 inches, 1 micron) for RO/DI systems. The graded-density polypropylene cartridges trap particles throughout their thickness to protect downstream carbon and membrane stages.
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FilterGE Water Technologies
The Case (40) of 2.5" x 10" 5 Micron Purtrex Depth Sediment Filters is a bulk 40-pack of true-graded 5-micron depth filters for RO/DI systems. The depth-graded design traps sediment throughout the cartridge, providing consistent filtration and long service life for high-volume water purification setups.
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FilterGE Water Technologies
The GE ROSave.Z Depth Filter case (40) is a case of 40 NSF 42-certified, 10-inch 1-micron polypropylene depth filters using Z.Plex technology for reverse osmosis pretreatment with up to twice the life of conventional depth filters.
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FilterGE Water Technologies
The GE ROSAVE.Z Case (40) is a bulk box of forty 10 x 2.5-inch, 5-micron depth sediment filters for reverse-osmosis pretreatment. Using GE's Z.Plex polypropylene matrix, they offer up to twice the life and greater dirt-holding capacity of conventional depth filters.
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FilterBulk Reef Supply
Bulk case of 50 BRS 4 x 14 inch felt filter socks with plastic rings, 200 micron felt that mounts to common sump holders and overflow drains. Felt removes finer floating particles than mesh socks, improving water quality and reducing filter maintenance, though it clogs faster.
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FilterBulk Reef Supply
A case of 50 felt filter socks, 7 inches in diameter by 16 inches long, with a plastic ring for mounting in a sump. They mechanically filter particulates out of aquarium water and are rated to trap fine debris before it breaks down.
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FilterTwo Little Fishies
Two Little Fishies CDX Carbon Dioxide Adsorption Media strips CO2 from protein skimmer intake air to raise chronically low aquarium pH, turning from white to pink when exhausted.
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FilterMarinePure
MarinePure Ceramic Biomedia Plates (8 x 8 x 1 in) are inert, open-porosity ceramic media with ~5,750 sq ft of surface area for beneficial bacteria that remove ammonia and nitrites, usable in sumps, filters, or directly in saltwater or freshwater tanks.
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FilterSea Side Aquatics
Seaside Aquatics Ceramic Bio-Spheres are porous ceramic spheres (approx. 31mm diameter each) made from thousands of tiny ceramic balls fused together, offering roughly 600 sq ft of surface area per sphere for beneficial bacteria colonization. Sold in 1 lb packages (about 20 spheres) with a mesh bag, they provide compact biological filtration for sumps in freshwater or saltwater aquariums.
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