Filters
filters — pre-owned
Browse 845 filters — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
Free Media 265GPH / 370GPH / 525GPH External Aquarium Filter with Builtin Pump K
Maximum flow rate of 370GPH from built in pump. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. Removes organic film and debris from water surface.
Avast Marine K2 Kalk Stirrer
Bought the diy kit built it most of the way just needs the wiring completed - was going to install it - we decided to not use kalk on the system
Lot Of Aquarium Pumps, and Other AccessoriesIncluding Loc Line Please See Photos
This lot has a variety of of pumps, lights and accessories. All parts in these pictures are in like new condition. Most are new. And all our bench tested. Pet bank feeder Top Finn air system Freesea pump Mag float Hygger salt, water light Unbranded salt water light Loc-line 23 piece piping system including 16 piece adjustable pipe measuring 16” Remote for lights One small submersible pump Three duck bills 2 Y splitters 1 wave maker 1 pipe connector
Aquarium Marineland Magnum 200 Canister Filter Saltwater Or Freshwater Filter
Fluval FX UVC 6-WATT In-Line Clarifier Compact Design- Up To 400 US GAL OPEN BOX
The box has been opened, item has never been used. Clarifier and additional parts have scratches/marks, some dust from moving around in box. Box has some damage. Item will be carefully shipped. Thanks for looking.
Fluval FX2 High Performance Canister Filter 475US GPH Multi stage Please Read D
The Fluval FX2 High Performance Canister Filter is a top-of-the-line filtration system designed for aquariums with a tank capacity of up to 475 gallons.
Marineland Magnum 350 Canister Filter
Marineland Magnum 350 Canister Filter Missing one "foot" as seen in pics
Marineland Aquarium Equipment Filter TS2 - See Description
Filter is in great shape. Unit has not been tested and thus full function is unknown If issues arise a return and full refund will be accepted. Reach out with issue prior to any other actions if problem arise.
Penn Plax Cascade 700 Canister Aquarium Filter 65 Gallon Tank 185 GPH Works
Tested and working. Will most likely need a cleaning before use. Tubes have a little bend in them near where they connect to the motor, I do not think that this will affect operation, but please note before purchase. Thanks!
You save $18.60
Marineland Penguin Pro 375 Power Filter + Air pump & stone + water change valve
I’ve never run this so I don’t know if it works but I’m assuming it does. Has a Whisper 40 air pump and an air stone but no tubing.
Marineland Penguin PRO 125 Power Filter for Aquariums up to 20 Gallons 125 GPH
Flow Rate: 125 GPH. Tank Capacity: Up to 20 Gallons. Model: Penguin PRO 125. Type: Power Filter.
4" Pre Sump Filter Sock Holder
This is a Pre Sump Filter Holder. One filter holder only. You may see scratches or used hints, but 100% function well. The gap fitting on glass is about 22 mm.
Fluval AquaClear AC30 Power Filter 10-30 US Gal READ
*includes only what is shown in photos
Reef Octopus
Reef Octopus
224.5GPH Canister Filter 3-Stage External Aquarium Filter Up to 55 Gal
224.5GPH Canister Filter 3-Stage External Aquarium Filter Up to 55 Gal
Fluval FX5/FX6 Output Nozzle Canister Filter Saltwater Freshwater
The Fluval FX5/FX6 Output Nozzle is a replacement part specifically designed for Fluval filters. This output nozzle helps to direct the filtered water back into the aquarium, ensuring a proper circulation of water through the filter. It is a crucial component for maintaining a clean and healthy environment for fish in the aquarium. Made by the trusted brand Fluval, this output nozzle is guaranteed to be reliable and durable for all your aquarium filtration needs. Used in great shape, did a quick citric acid soak before picture but could stand another soak.
Seachem Aqua Vitro Division 125 Protein Skimmer with Sicce PSK Pump
We take great pride in properly representing each item that we have for sale.
Marineland HOT Magnum Aquarium Filter
Filter has been cleaned and lubed and works well. Impeller is in great condition with no damage. includes original inlet and outlet tubes and also the unused outlet for hooking up a bio wheel. Includes both Filter basket setup and a micron that was used once and bleached afterwards. Also including a new spare gasket incase you need one down the road. Lastly also includes the manual and original paperwork. These are next to impossible to find these days and do wonders to clear up a tank quickly. Thanks for looking!
USED Blue Ocean OF 600 Overflow Box Continuous Siphon Aquarium Hang On 125G
This continuous siphon overflow box is constructed of high quality acrylic and works without U-tubes. Includes 1” bulkhead and is compatible with standard 1” PVC. Includes 1" ID bulkhead fitting and strainer.
Fluval Filter Case for 306 Canister Filter
The Fluval Filter Case for 306 Canister Filter is a high-quality external filter designed for fish tanks up to 70 gallons. This unit, made in Italy by Fluval, has a flow rate of 1150 L and is suitable for all water types. With its durable construction and efficient filtration capabilities, this filter case is essential for maintaining clean and healthy water in your aquarium.
Filter Part | Aquarium Filter Replacement Strainer | 1" Size | Old Stock
Aqueon Replacement Filter Cartridges Quietflow10 Medium 12 pack Fast Free Ship
New and sealed in a poor box.
Zoo Med Turtle Clean 30 External Canister Filter for Aquatic Turtle used , read
this unit is NOT complete. the pump is unused, brand new same with filters . the rest is used . missing hoses and clamps great for someone who needs the pump or parts
USED CFS 330 Aquarium Fish Tank Canister Filter External Odyssea 290 GPH 75 Gal
The CFS 330 is a great and easy to use external filter for any freshwater or marine aquarium. This filter includes all the parts, filter pad, filter sponges, and accessories you need right out of the box.
Fluval FX6 & FX5 Canister together Filter for All Water Types External Aquarium
 Going fast only two canisters left no hosing no bio media no chemical missing a few white top fasteners on top of FX6, missing inside handles some cheap TLC and they’re ready to go 150 each or 297 for both.
aquarium overhead box filter Lot Of 2
This box filter is meant to go on top of your tank. Powered by a pump and hose and then flows through the bottom hole. You can configure the media to your liking. Great supplemental filter. This listing is for TWO. One is lightly used the other is brand new. Dimensions are shown in last two pictures.
Bulk Reef Supply BRS GFO Carbon Reactor Reef Tank Filter Media System - Used
The Bulk Reef Supply BRS GFO Carbon Reactor Reef Tank Filter Media System is a high-quality external filter media system designed for all water types. Perfect for fish and aquarium enthusiasts looking to ensure a clean and healthy environment for their underwater pets. If you would like to see any more photos please just ask. Check out my outstanding feedback and know you’re buying from a reliable seller! All my items come from a smoke free home. Shipped via USPS Ground Advantage.
OCEAN LIFE O2 REACTOR 20" SALT WATER FISH TANK AQUARIUM FILTER REEF NEW GUAGE
More pictures available for the asking. The details are in the many pictures. Air pump is needed. Height to the top of the reactor is 20 1/8". Base - 6 3/4" width. As reactor fills with water - when float chamber fills the float switch turns on air pump.
Bulk Reef Supply GFO and Carbon Reactor
Bulk Reef Supply GFO and Carbon Dual Reactor with 64 oz BRS GFO and Carbon that are 3/4 full
two (2) water tank skimmers + 1 submersible pump - used FOR PARTS ONLY
I don't have a salt water tank so I am not even sure how to use them. None of these have been tested so I am not sure if they work.
Aquarium Canister Filter with 3 Media Trays Spray Bar SF-850F-UV-225GPH
Aquarium Canister Filter with 3 Media Trays Spray Bar SF-850F-UV-225GPH
Waterbox Marine 60.2 Clearview Reeflex Lid
MARINELAND Canister Filter Model C-220 Up To 55 Gallon Aquarium
In good condition with some scratches from use and storage. Filter media is not included. Please see pictures for more details.
Penn Plax Cascade 700 Canister Filter Tank Base w/ Media Baskets
Item: Penn-Plax Cascade 700 Canister Filter Tank Base / Housing. • Blue canister tank base. • Bottom grid plate. Used condition with normal wear from prior use. No cracks observed in the tank. Needs cleaning and ready for reuse or parts.
EHEIM Pro 3+ 250 Canister Filter Aquarium Filter
You save $7.50
AQUA TECH FISH TANK AQUARIUM EXTERNAL FILTER 20-40 GALLON
Aqua-Tech Power Filter 20-40 Gallon EZ-Change #3 External Aquarium. Look like new. Has biofoam for beneficial bacteria to grow. Great for new tank etc. Takes replacement filter cartridges. Check out my other items. Feel free to message me if you have any questions. Buyer pays shipping. Payment due within 3 days. Unless other reasonable arrangements are made. Item will be shipped same day when payment is made if possible. Or the next day.
TETRA Whisper IQ Power Filter 20 Gallons, 130 GPH, with Stay Clean No Filter
It is a power filter that operates internally and is specifically designed for fresh water aquariums. The filter model, WHISPER IQ 20, provides superior filtration efficiency and is a great value for the price.
OPEN BOXED Aqueon QuietFlow Model 20 Pump (Part# 03118)
Includes impeller,NO O-RING. Aqueon Part# 03118.
Marineland T33 Canister Aquarium Filter External with Media
100 Gallon canister filter bought new used it for a few months works great needs new o rings.
Penn-Plax Cascade 700 Aquarium Canister Filter 65 gallons Fresh & Marine 185 GPH
In good pre-owned condition Will need carbon bag/filters. I do see one black coarse sponge in one of the baskets. Tubes have been used so they have been cut to the sizes previously needed and could use a light cleaning. Light scuffs on circular logo on top (see photos) Includes box and instructions