Description
Fluval U3 Underwater Filter – 3-Stage Filtration for Aquariums up to 40 Gal
The Fluval U3 Underwater Filter delivers powerful three-stage filtration for freshwater, saltwater, and reptile environments. Designed for tanks up to 40 gallons, it provides mechanical, chemical, and biological filtration in one compact, submersible unit.
Versatile Placement Options
- Install vertically for strong current flow
- Position horizontally for shallow tanks
- Create decorative waterfall effect
- Ideal for turtle tanks and low water setups
Advanced 3-Stage Filtration
- Stage 1: Foam pad removes large debris
- Stage 2: Poly/carbon cartridge traps fine particles and improves clarity
- Stage 3: BioMax media supports beneficial bacteria for biological filtration
Easy Maintenance Design
- Convenient flip-top lid
- Quick cartridge access and replacement
- Redesigned media cartridge for improved debris capture
Flexible Use
- Primary filter for smaller aquariums
- Supplementary filter for larger tanks
- Suitable for freshwater, saltwater, and reptile habitats
- Designed for tanks up to 40 gallons
Fluval’s trusted filtration technology supports clean, clear water and a healthier aquatic or reptile environment.
Wags & Whiskers Pet Supply — Where Every Pet Is Family.
Ingredients
Complete your beauty ritual
Delivery and return policy
Our team will ship your order within 5 business days. The time it takes to receive your order depends on the shipping method chosen at checkout.
We hope you to love it, but if you need to make a return, breathe easy. Returns are always free and can be done in person or by mail.
Regular price
$64.99
$64.99
Sale price
Regular price
