OUKMAO USB Internal Aquarium Filter – B1/B2, Duckbill or Rain Bar

Two Models for Different Aquarium Sizes

Choose the compact B1 or the taller B2 internal aquarium filter to match your setup.

• B1: 16.5 × 8 × 5 cm; for aquariums up to 20 L.
• B2: 21.5 × 9 × 6.5 cm; for aquariums up to 40 L.
• Power cable: 1 m USB cable.

Choose Your Outlet and Color

Select the outlet style and color that best fit your aquarium.

• Duckbill outlet: directs water flow to a selected area.
• Rain bar: distributes water across multiple outlet holes.
• Colors: available in black or white.

Flexible Installation and USB Power

• Use the hook mount on aquarium rims up to 6 mm.
• Or mount the filter with the four included suction cups.
• Choose a US, UK, or EU plug adapter for the USB power cable.
• Keep the USB connection and adapter dry.
• Disconnect power before moving or cleaning the filter.