






Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.
๐ ๏ธ Seal the deal with confidenceโnever let a leak cramp your aquatic vibe!
Captain O-Ringโs A20063/A20064 replacement seals are precision-engineered rubber o-rings compatible with Fluval 304-307 and 404-407 canister filters. Sold in a convenient 2-pack, these USA-assembled seals provide a durable, leak-proof fit to maintain optimal filter performance and protect your aquatic environment. Backed by a warranty from Captain O-Ring LLC, they offer an easy, reliable solution to prevent leaks and keep your aquarium running smoothly.





| ASIN | B0CJSW1QS1 |
| Best Sellers Rank | #32,131 in Pet Supplies ( See Top 100 in Pet Supplies ) #328 in Aquarium Filter Accessories |
| Brand | Captain O-Ring |
| Brand Name | Captain O-Ring |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 174 Reviews |
| Manufacturer | Captain O-Ring LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | A20063 O-Ring |
| Number of Items | 2 |
| Number of Pieces | 2 |
| Part Number | A20063 |
| UPC | 810061941422 |
| Unit Count | 2 Count |
R**B
Worked perfectly.
Product worked perfectly. Easy to install. No leaks!
U**0
Exact fit, cant go wrong
Capital rings are great I have a fluvall 407 and a 107 and purchase the o-rings for both The nice thing is is you get two o-rings per package so even in the event that the factory one fails you still have a second backup they fit like a charm just remember to put some o-ring grease that's not petroleum based look for food safe Billy skin actually makes a food safe and food contact o-ring lubricant comes in a tube and pretty well priced these will be my go-to from here on out I've had to change one o-ring on each pump and I still have an extra one left over at their price it's a steal it's definitely worth having o-rings and replacing them every once in awhile than having a flooded house and dead creatures
C**.
No more leaking!
I used some dielectric food safe grease to lube up the O-ring and installed it on my Fluval filter, no more leaks! Its been working for the past 8 months so I'd say its a durable and quality product.
D**.
Deberรญa venir lubricado
Barato y se ajusta bien. Deberรญa venir lubricado.
G**B
Great seller
Fast shipping. Item as described
A**O
Great replacement
These O-rings are a great fit and replacement part for the Fluval 307 and 407 cannister filters. Whenever I do filter maintenance every 3 months I change out the O-rings. Filter has never leaked or given me issues on fitment.
A**R
Captain 0-ring replacement for Fluval filters.
These work great in both my Fluval 405 and 407 canister filters.
S**R
Stopped the leaks, period!
The new o-rings solved nearly a yearโs worth of frustration with trying to put the lid back on after cleaning, without them leaking. I was literally going to buy a new unit, but decided to try a simple o-ring replacement. Not only did the lid go on smoothly with the new o-ring, but I was able to do it without any leaks! Iโm so happy and relieved.
S**.
Works
Work gteeat
Trustpilot
1 month ago
3 days ago