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Fluval

Fluval in Line UVC Clarifier for Aquarium Filters

  • Based on 1,792 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Feb 5 – Feb 18
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Features

  • A chemical-free and maintenance-free way to purify water that eradicates suspended bacteria and algae in the water column that contribute to cloudy and green water, respectively

Description

Fluval in Line UVC Clarifier for Aquarium Filters

Brand: Fluval


Item Weight: 15.8 Ounces


Item Form: Stick


Manufacturer: Rolf C. Hagen (USA) Corp.


UPC:


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 6.3 x 2.36 x 5.12 inches; 15.8 ounces


Item model number ‏ : ‎ A203


Date First Available ‏ : ‎ October 6, 2020


Manufacturer ‏ : ‎ Rolf C. Hagen (USA) Corp.


Best Sellers Rank: #17,791 in Pet Supplies (See Top 100 in Pet Supplies) #166 in Aquarium Filter Accessories


#166 in Aquarium Filter Accessories:


Customer Reviews: 4.3 4.3 out of 5 stars (1,807)


Item Weight: 15.8 ounces


Manufacturer: Rolf C. Hagen (USA) Corp.


Item model number: A203


Date First Available: October 6, 2020


Item Package Dimensions L x W x H: 10.43 x 7.44 x 2.87 inches


Item Dimensions LxWxH: 6.3 x 2.36 x 5.12 inches


Item Weight: 15.8 Ounces


Brand Name: Fluval


Target Audience Keyword: Fish, fish


Directions: 1. Connect the UVC clarifier in-line to your canister filter hosing with an internal diameter of 5/8” (or 16 mm). 2. Ensure is positioned in a way that water flows up, down, and around bulb maximize contact time for effective clarification. 3. Power on clarifier, which uses CCFL technology run cooler last up 30,000 hours. 4. The suitable freshwater, saltwater, turtle aquariums where algae often present. 5. Replace (#HA19990) when needed, sold separately.


Warranty Description: 2 Year Standard Warranty, The Fluval UVC in-line Clarifier is guaranteed for defective parts and workmanship for a period of 2 years from the date of purchase. This guarantee is valid with proof of purchase only. The guarantee is limited to repair or replacement only and does not cover consequential loss, loss or damage to livestock and personal property or damage to animate or objects, irrespective of the cause thereof. This guarantee is valid only under normal operating conditions for which the unit is intended. It excludes any damage caused by unreasonable use, negligence, improper installation, tampering, abuse or commercial use. The warranty does not cover wear and tear, breakage of glass or parts which have not been adequately or correctly maintained. THIS DOES NOT AFFECT YOUR STATUTORY RIGHTS.


Model Name: Fluval In Line UVC Clarifier


Color: Black


Age Range Description: All Life Stages


Number of Items: 1


Included Components: All items listed in description.


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Feb 5 – Feb 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Works like a charm!!!
Bought this and was a bit skeptical, but hooked it up and literally within a week my tank was crystal clear and not only that it was the clearest tank in my fishroom. Had a TON of green water in my tank and couln't even see an inch into the tank. I hooked this up to my Fluval 407 that is connected to my 75 gallon tank and it worked perfectly! Was super easy to install as well. HIGHLY suggest getting this if you are having issues with green water. Wish I would have taken pictures, but "luckily" once my 75 gallon tank cleared up, another one of my tanks started to suffer from green water so I just purchased another one of these and I will post a new reiview with pictures of the stages of the tank when that clears. ... show more
Reviewed in the United States on January 20, 2025 by Vicky Gebel
    • Will prevent pathogenic and algae blooms.
Review Image by Steven Steven
Review Image by Steven Steven
Review Image by Steven Steven
The media could not be loaded. After repeated algae blooms and cloudy water from pathogens, I got this Fluval UV water sterilizer. I had 1/2" filter inlet/outlet pipes so I had to use 1/2“X5/8“ nylon hose barb adapters because the Fluval 207 uses 5/8“ ID vinyl. I checked the unit before install to make sure the light was coming on, keep that in mind. Update: Well, it has been almost a week with the UV light on for 10 hrs a day. I started with 8 hrs a day, but bumped it up to 10 hrs before I started seeing the water become clearer. So just about a week for the water to become crystal clear. I noticed some change after a day. Best money I could have spent as this will kill pathogens in the water that can cause disease, I can even notice the fish become more active. The water almost looks so clear like it was being filtered with a diatom filter. The video is looking long ways through the tank. ... show more
Reviewed in the United States on April 30, 2024 by Steven Steven
    • Amazingly crystal clear!!
This product is a miracle worker! I've tried everything to clear up my tank for months. Chemicals...water changes...2 different filters...It just kept getting worse. We did purchase Fluval 207 external filter along with this. By the time we hooked this up our tank looked like pea sou. It took about 5 days but the tank is crystal clear and I can finally see my fish after months!! I tested the water today and everything was perfect!! I highly recommend this!!! ... show more
Reviewed in the United States on June 12, 2024 by tamorav
    • It cleared up my tank quickly.
I was struggling with algae overgrowth. The water was so murky even after many water changes and cleanup. Nothing seemed to make a difference. After using the uv light for just a few days it cleared up and after a week is clearer than ever before. I used this with my fluval 307, easy to install.
Reviewed in the United States on February 6, 2025 by A. Fruzza
    • Under 2 years lifespan.
The UV light is dead under 2 years of usage, overall worked well for it’s function.
Reviewed in the United States on July 25, 2025 by Andy
    • Works great
Review Image by Justin G. Justin G.
Review Image by Justin G. Justin G.
Review Image by Justin G. Justin G.
Review Image by Justin G. Justin G.
I returned this item, because I needed a different one. Fluval items are top notch. I took pictures of the one that I had to buy, because of my Fluval filter. But I have no doubt that the one I returned would have did the same job.
Reviewed in the United States on February 23, 2025 by Justin G. Justin G.
    • Did not work, and poor quality
Terrible product. Unfortunately I just wrote several paragraphs as to why this is the case, but I lost it all and now i am defeated. IN summary, I am an experienced Aquascaper running a 60p, and this light not only did nothing, but in fact my green water got worse while using it. Right there I would consider it a total failure, but there is more: The hose fittings are awful, there is no indication the light is actually even on, and the unit's threads are super soft and easily damaged (which happened). Again i wish i didnt loose all the details here but that is summary. Buyer beware. ... show more
Reviewed in the United States on June 14, 2023 by Matt W.
    • Best thing ever!!
Review Image by Kim Curtis Kim Curtis
I thought this because my tank looked like pea soup, I have live plants and live wood so I don’t know what happened, but I tried water changes and water clarifier and nothing worked so I bought this and put it on my marine land canister filter. I had to add a clamp to the hose from filter because the screw nut they provided wasn’t big enough to go over my existing hose. I took me a total of 15 min to get it going from box to complete hook up. By late that evening I already so a subtle difference and by 2 days later it only had a slight haze, four days later it’s crystal clear!! Definitely worth it, if your having issues but it you want be sorry ... show more
Reviewed in the United States on July 25, 2024 by Kim Curtis Kim Curtis

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