



💧 Keep your aquatic ecosystem flawless with Fluval’s precision Aqua Stop Valve!
The Fluval Fx5 Aquastop Valve and O-Ring is a premium, USA-made replacement part designed to regulate water flow efficiently without damaging your aquarium’s motor or components. Engineered from durable elastomer, it offers a perfect fit and quick installation, trusted by both beginners and experts to maintain healthy aquatic environments.




| ASIN | B0017JG5MK |
| ASIN | B0017JG5MK |
| Best Sellers Rank | #23,762 in Pet Supplies ( See Top 100 in Pet Supplies ) #245 in Aquarium Filter Accessories |
| Brand | Fluval |
| Brand Name | Fluval |
| Color | Black/ Red |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,109) |
| Date First Available | April 8, 2008 |
| Date First Available | April 8, 2008 |
| Global Trade Identification Number | 00015561302166 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 2.5 x 6 x 9.8 inches |
| Item Package Dimensions L x W x H | 5.87 x 2.6 x 0.35 inches |
| Item Weight | 0.05 Kilograms |
| Item model number | A20216 |
| Item model number | A20216 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Material | Elastomer |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Product Dimensions | 2.5 x 6 x 9.8 inches; 1.76 ounces |
| Set Name | O-Ring and Aqua Stop Valve |
| Size | 3 Piece Set |
| Target Audience Keyword | algae-eaters, betta-fish, bottom-feeder-fish, cichlid-fish, fish, goldfish, invertebrate-fish, mollusks, octopuses, rays, sharks, snails |
| UPC | 015561302166 |
| Unit Count | 1 Count |
R**S
Perfect replacement
Exact fit, took less than 5 minutes to install, works perfectly
C**R
Quality excellence
Work great
D**K
Fx2
Worked great on my FX2
T**O
Item is direct replacement and works
Works as it should and fits
C**C
Great replacement part
bought this as a replacement Aquastop valve and O-ring for my Fluval FX4, and it worked exactly as expected. The fit was perfect, installation was quick, and it sealed properly with no leaks after setup. Once installed, the filter was back to running smoothly with proper flow. The valve feels solid and well-made, matching the quality of the original part. This replacement saved me from having to replace the entire filter assembly. Overall, it’s a reliable, direct replacement part that does the job well. Highly recommended for anyone maintaining an FX4.
J**Y
No leaks, can’t ask for more.
Fixed my small leak coming from the bottom adjustment knob itself.
E**Y
Worked perfect, stopped my leak
Worked perfect, and stopped my leak, just wish it was a little bit cheaper.
S**O
Works with fx6
I have a fx6 made the swap works great so far 5 min fix
A**A
Arrive bien.
R**O
Perfecto, fácil de cambiar y de instalar.
R**N
Excellent quality as you you would expect from fluval, was purchased as spare valve for fluval fx2 by swapping outlet valve on filter for this one with a length of hoseing for easier & faster water changes.
D**A
No leaks, good job
J**M
Mitt FX6 började suga in luft och till slut hittade jag att en ventil läckte in luft och bytte. Nu funkar allt perfekt igen.
Trustpilot
3 weeks ago
3 weeks ago