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Fluval C Power Filter

by Fluval
| 19 answered questions

List Price: $91.99
Price: $54.99 & FREE Shipping. Details
You Save: $37.00 (40%)
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  • Power filter featuring 5 stages of filtration for aquariums between 40 to 70 gallons
  • Filters 264 gallons per hour
  • Equipped with cleaning indicator for when the polyfoam needs to be rinsed
  • Clip on filter; Quick and easy maintenance
  • Helps provide a stress-free environment; Works to maintain refreshing crisp water
7 new from $49.99 1 used from $38.52

Alpha House Gift Guide

Frequently Bought Together

Fluval C4 Power Filter + Fluval C4 Poly Foam Pad - 3-Pack + Fluval C4 Bio-Screen - 3-Pack
Price for all three: $67.72

Buy the selected items together

Special Offers and Product Promotions

Style: C4
  • Buy Used and Save: Buy a Used "Fluval C4 Power Filter” from Amazon Warehouse Deals and save 58% off the $91.99 list price. Product is eligible for Amazon's 30-day returns policy and Prime or FREE Shipping. See all Used offers from Amazon Warehouse Deals.

Product Details

Style: C4
  • Product Dimensions: 6 x 8.2 x 8.5 inches ; 1 pounds
  • Shipping Weight: 3.2 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Item model number: 14003
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (335 customer reviews)
  • Amazon Best Sellers Rank: #4,012 in Pet Supplies (See Top 100 in Pet Supplies)
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Product Description

Style: C4

Product Description

14003 Size: C4 (Between 40 and 70 gallons) Features: -Power filter. -5 stages of filtration: 2 mechanical, 1 chemical and 2 biological stages for top performance. -Equipped with Poly/Foam, Activated Carbon, C-nodes and drip tray pad. -Biological filtration is super charged for fast and efficient nitrification. Filter Type: -Power. Filter Placement: -External. Generic Dimensions: -C2 Pounds Weight: 1.92 lbs. -C2 Pounds 8'' H x 6'' W x 4.5'' D. -C3 Pounds Weight: 2.16 lbs. -C3 Pounds 8'' H x 7'' W x 4.5'' D.


06 Series Fluval C Power Filters
Fluval C Series Power Filter

Maximum Versatility and Premium Performance

Engineered to create superior water quality, the Fluval C Power Filter provides extensive 5-stage filtration for outstanding results. The Power Filter is designed to provide maximum surface area and optimum dwell times in all stages of the filtration process.

New 5 Stage Filtration System

Stage 1 & 2: Mechanical- Poly/Foam Pad Effective mechanical filtration is essential for efficient chemical and biological filtration. The large surface area of the Poly/Foam pad effectively performs two stages of Mechanical filtration. The first stage of porous foam traps large particles and the second stage of dense polyester captures fine debris.

Stage 3: Chemical- Activated Carbon Insert The Fluval Activated Carbon Filter Insert contains 100% premium research grade carbon, which provides large amounts of surface area for adsorption of undesirable impurities. The activated carbon filter insert removes unwanted odors, discoloration and impurities, resulting in a crystal clear aquarium.

Stage 4: Biological-Bio-Screen An additional hydraulic circuit conveys part of the intake water to the Bio-Screen placed at the top of the Trickle Chamber cover. Fluval’s Bio-Screen removes any debris before dripping into the biological chamber. It also ensures that the water pumped to the Trickle Chamber is evenly spread through all areas before it drips on the C-Nodes, which are contained in the chamber. The motion of water dropping slowly through the grids mimics the rain.

Stage 5: Biological- C-Nodes The surface of the C-Nodes is made up of a complex pore system that provides optimal living space for beneficial bacteria to thrive and enhance the removal of ammonia and nitrites. The new “Star Shape” provides a higher filtration surface and more biological power than a traditional cartridge, resulting in a healthy aquarium environment.

Patented Refiltration System

Sometimes delicate fish and plants require a more gentle water flow. Fluvals’ patented re-filtration system allows you to control the flow rate without compromising filtration efficiency. When the flow rate is reduced, up to 50% of the water within the filter chamber is re-processed multiple times. More impurities are filtered out, creating a healthier tank with sparkling clean and clear water

What’s In The Box?

1. Filter Cover 2. Filter Case 3. Leveling Device 4. C-Nodes 5. “U” Tube 6. Telescopic Intake Tube 7. Bio-Screen 8. Mechanical Frame 9. Chemical Basket 10. Impeller Cover Assembly 11. Impeller 12. Biological Trickle Chamber with Cover 13. Poly/Foam Pad 14. Activated Carbon 15. Motor Unit with Seal Ring

Media and Accessories

Media Replacement

Fluval Poly/Foam: Replace poly/foam every 4-6 weeks.

Biological C-Nodes: Replace half the quantity every 6 months. Never replace all c-nodes at once.

Activated Carbon Insert: Replace Activated Carbon every 2-4 weeks.

Bio-Screen: Replace Bio Screen every 2-3 months.

Motor O-Ring: Replace once a year to prevent leaking.

Power Filter Maintenance

For optimal performance it is recommended to clean the impeller cover assembly once a year. The motor should be thoroughly cleaned every three months. Always unplug the Fluval C Power Filter prior to cleaning. Remove cover, filter media and discard water remaining in the filter case. Thoroughly rinse collected debris from the case, impeller cover and impeller assembly using clear lukewarm water. The intake "U" tube and extension tube can be cleaned with a filter stem brush to remove any buildup of deposits. When all parts have been cleaned and thoroughly rinsed, reassemble filter and replace any scheduled media. Install the filter once again back on the aquarium making sure that the filter is tipped slightly forward. Then fill the Fluval C filter box with aquarium water. Finally plug the filter into an electrical outlet and the Fluval C Power Filter will self-prime and begin running in a few seconds.

Fluval C2 Power Filter
Fluval C3 Power Filter
Fluval C4 Power Filter
Aquarium Capacity 10 to 30 US Gallons 20 to 50 US Gallons 40 to 70 US Gallons
Dimensions 4.5 x 6 x 8 inches 4.5 x 7 x 8 inches 6 x 8.2 x 8.5 inches
Stages 5-stage filtration 5-stage filtration 5-stage filtration
Max Flow Rate 119 US Gal/H 153 US Gal/H 264 US Gal/H

Fluval C Filtration/Media
Fluval Poly Foam Pad - 3-Pack

The Fluval C Poly Foam Pad Replacement Media, 3-pack, has two sides that combine to provide thorough and effective mechanical filtration. The Fluval C Poly Foam captures large particles of debris on it porous foam side, while the polyester side filters out finer debris and contaminants.

Fluval Bio-Screen - 3-Pack

The Fluval C Bio-Screen Replacement Media provides massive biological surface area for friendly bacteria to colonize. It also works to block debris and evenly distribute the water flow before it drips into the Power Filter's biological trickle chamber.

Fluval Carbon - 3-Pack

The Fluval C Activated Carbon Replacement Media, 3-pack, is capable of adsorbing most liquefied impurities and dyes present in aquarium water. The carbon works to remove odors and discoloration from your tank. Fluval C Activated Carbon is suitable for freshwater or marine aquariums, but was exclusively designed for the Fluval C Power Filter.

Fluval Zeo-Carb - 3-Pack

The Fluval C Zeo-Carb Filter Insert combines ammonia removal with ultra-grade carbon purification. Working together, these highly effective media eliminate liquefied impurities, odors and discoloration, while simultaneously removing toxic ammonia, for a clean, healthy aquarium.

Fluval Ammonia Remover - 3-Pack

The Fluval C Ammonia Remover Media, 2-pack, is ideal for new or heavily populated freshwater aquariums. It removes and controls harmful ammonia and nitrite, which helps reduce stress on fish. Use this product to provide a healthy environment when setting up a new aquarium or maintaining one that contains a high fish stock.

Fluval C-Nodes

luval C-Nodes feature a complex pore system where beneficial bacterial will thrive. Their star shapes provide a higher filtration surface and more biological power than most biological media, resulting in a healthy aquarium environment. The Fluval C-Nodes are for use with the Fluval C Power Filters.

Fluval Water Care

Aquarium supplements and conditioners are a convenient way to create water conditions that mimics those found in nature; they make water safe for aquarium use by removing harmful toxins, help plants grow by providing them the necessary trace elements and are an easy way to maintain water quality in a tank by removing waste and adding beneficial bacteria to the environment. Developed by our dedicated team of specialists and manufactured in Canada at our state-of-the-art liquids facility, new Fluval water treatments are scientifically formulated to produce clean, clear and safe living conditions for aquarium fish and plants.

Hagen Fluval Water Conditioner for Aquariums

Fluval Water Conditioner is highly efficient comprehensive water conditioner that makes tap water safe for fish by removing chlorine and chloramines and neutralizing toxic heavy metals. Fluval Water Conditioner features a patented stress relief formula and is also effective at protecting scales and fins and preventing the inflammation.

Hagen Fluval Biological Enhancer for Aquariums

Fluval Biological Enhancer is a responsive biological aquarium supplement that ensures that all aquariums are immediately inoculated with a powerful team of beneficial bacteria, providing a safe biological habitat for your fish. These highly effective micro-organisms will create a biological flora that quickly metabolizes lethal ammonia and nitrite.

Hagen Fluval Biological Cleaner for Aquariums

Fluval Biological Cleaner helps reduce aquarium maintenance by helping to reduce waste in gravel, power filters, decoration and on interior aquarium surfaces. Fluval Biological Cleaner rapidly reduces organic waste from overfeeding, fish waste, and other decaying material such as plant leaves.

Hagen Fluval Plant Micro Nutrient for Aquariums

Fluval Plant Micro Nutrients is a balanced supplement essential for healthy, vibrant aquarium plants. Tap water is often devoid of necessary trace elements required by aquatic plants and plants rapidly deplete available micro-nutrients, regular supplementation is necessary.

Fluval Quick Clear for Aquarium Water Treatment

Fluval Quick Clear effectively helps eliminate undesirable particles that cause cloudy aquarium water, such as suspended organic and inorganic particles, dirt, slit and fine sand. Its special formulation clumps together particulate waste by ionic attraction, vastly enhancing filtration absorption and creating crystal clear water.

Fluval Clarify Bio for Aquarium Water Treatment

Fluval Bio Clear contains fast-acting enzymes that naturally clarify cloudy aquarium water. Its biological formulation effectively clears cloudy water by rapidly consuming free floating organic food sources, proteins and other organic elements. Bio Clear is recommended for clarifying cloudy water caused by new tank syndrome.

Customer Reviews

It is very easy to maintain and very quiet.
John Razvaliaeff Jr
You can clean or change the filter pad without removing the chemical or biological filter media.
Robert Fredriksen
Hagen's Fluval C4 is one of the best filters I have!
Jeff Jones

Most Helpful Customer Reviews

129 of 130 people found the following review helpful By CaliOutlaw1a on March 6, 2011
Style Name: C4 Verified Purchase
I purchased the Fluval C4 about 3 months ago. Thus far it has kept my water absolutely crystal clear.
Overall: I'm very impressed and very pleased with this HOB filter. I'd recommend it to anyone looking for a nice all-in-one filter with easy maintenance.

Here's a list of some nice features:

-Better use of the space available in the filter box compared to other HOBs - Many other HOBs have dead space where there isn't any type of filtration happening. This filter has been effectively designed to allow maximum filtration in the space provided.

-Very nice all-in-one filter - Mechanical, chemical, and biological filtration all efficiently incorporated into the filter box. The trickle chamber with ceramic media makes this one of the best biological HOBs out there.

-Still customizable - Many people don't use carbon in their filters. The carbon slot is large and can be replaced with just about anything (e.g. more mechanical filter pads or extra biological media).

-Quality design & Easy maintenance - All of the components fit snugly together, and it is very easy to remove and replace different compartments of the filter for cleaning.

-Cleaning indicator - The filter has a built in cleaning indicator that pops up when the filter pads have become clogged causing the water level in front of the filter pads to raise.

-Flow regulator - The flow regulator actually works! I've had many HOBs where the flow regulator is very crude and imprecise. The flow regulator on the C4 is VERY precise and easy to adjust.

-Extremely quiet

-Intake tube height is very easy to adjust - Simply push up or pull down to get the intake exactly where you want it. No more adding or removing intake tube segments.
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35 of 36 people found the following review helpful By kenny on May 22, 2012
Style Name: C4 Verified Purchase
I have the c4.
It's great and I have been in the hobby for over 30 years.
I am using it on a 20 gallon tank.
You can never have too much flow rate.
To slow the turbulence I use a Fluval Edge prefilter, the flow adjuster and an aquaclear 50 foam sponge at the water output.
Let me comment on a few negatives people have written about this filter.
1) The water in my tank is crystal clear and as Jack Nicholson and Tom Cruise said in "A Few Good Men" ...."It's that simple." "Are we clear?" "Yes, sir." "ARE WE CLEAR!?" "Crystal" ..... LOL,love that movie.
To those who said the water is cloudy, yes, it was at first. I think it was because of the C nodes. You need to either rinse it clear for hours before using it or just let the filter do it in the tank. It took about 2-3 days to clear up but once it did, the water in my tank is crystal clear. I have been running it for 2 weeks and without the charcoal. I replace it with the aquaclear Biomax to increase the biological media. The Biomax and C nodes' fine powder dust clouded the water but like I said, it's clear crystal clear now. Just let the filter do it's job and the water will be crystal clear in a couple of days.
2) My filter is so quiet that you don't know it's on. What I did was apply some vaseline onto the impeller shaft and into the hole of the impeller. I did this without hearing if it needed to or not. I just applied it before I used it. The motor has NO noise at all and the lid does not rattle. The only thing you hear is the water cascading out of the filter.
3) The self priming issue is that you need to have water in the filter box before you start it. Once there is water, it will self primes. It will take about a minute to self prime as it sucks up the water through the tube.
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46 of 49 people found the following review helpful By ECW on December 9, 2011
Style Name: C4 Verified Purchase
I really love this HOB filter. Some may argue but I think this is the upgraded Aquaclear. They use the same motors as the Aquaclears and have redesigned the internals as well as the external look of the filter. They really thought this HOB filter design thorougly. It is much sleeker and attractive than the older Aquaclears as you can obviously see, but works as well or better in my opinion.
Everything is designed with ease of maintenance and performance in mind. To clean it is incredibly easy. Each compartment of filtration is seperate and can be taken out easily as needed for maintenace. You don't even have to turn off the filter to maintain it. If you want to clean the mechanical sponge (the only thing I clean really) it's as simple as pulling up the back compartment which is seperate from the other compartments. Unlike the Aquaclear which you have to take out everything on top of the sponge first to get to the sponge which needs the most frequent rinsings. This makes for much easier regular maintenance than the Aquaclear.
The mechanical filtration on this filter is also upgraded from the Aquaclears. The sponge has a material similar to the Aquaclear's sponge but now also has a tweak/improvment made to catch the tiny particles that float around in your tank. It is a two part sponge fused together which is a coarse sponge with a material similar to polyfil batting attached into one. The mechanical filtration even has a indicator that pops up when the sponge needs rinsing.
If you choose to use carbon (I don't I filled that compartment with more biomedia) you just lift out the integrated wet dry and pull out the basket that holds the carbon and replace. Drop the basket that holds the carbon back in and put the wet/dry system back on top it's super easy.
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