Overview
The Two Little Fishies PhosBan 550 O-Ring is the replacement seal that keeps your PhosBan 550 media reactor running leak-free. Engineered to fit the reactor precisely, it maintains the tight seal needed for proper flow and pressure through the media chamber. Swapping a worn O-ring protects water quality and surrounding equipment.
Key Features
- Precise fit for the PhosBan 550 media reactor
- Creates a tight, leak-free seal between body and lid
- Maintains proper flow and pressure through the media
- Durable, aquarium-safe material
- Extends equipment life and prevents leaks
Specifications
| Weight | 0.22 lbs |
|---|---|
| Fits | PhosBan 550 reactor |
| Brand | Two Little Fishies |
| UPC | 748172549056 |
About Two Little Fishies
Two Little Fishies makes reactors, media, and replacement parts for reef and marine aquariums. Visit Two Little Fishies.
Frequently Asked Questions
Which reactor does this O-ring fit?
It is engineered specifically for the PhosBan 550 media reactor.
When should I replace the O-ring?
Replace a worn or cracked O-ring to prevent leaks, restore proper flow, and extend the reactor’s life.



























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