Product information:

Aquarium Hang-On-Back (HOB) Waterfall Bio Filter

Keep your tank crystal clear with this efficient waterfall-style filter. Designed for both freshwater and saltwater aquariums, it combines mechanical, biological, and optional chemical filtration in one easy-to-use unit.

Features

• 3-Stage Filtration – sponge (mechanical), ceramic media (biological), and space for carbon or other media (chemical).

• Easy Setup – hangs directly on the back of your aquarium, no extra plumbing required.

• Quiet Waterfall Flow – aerates your tank while providing continuous circulation.

• Durable Build – lightweight plastic housing with replaceable filter pads.

Model Options & Tank Sizes

• RS-1000 – 600 L/H (158 GPH)

➝ Suitable for tanks up to 20–30 gallons freshwater or 15–20 gallons saltwater

• RS-2000 – 800 L/H (211 GPH)

➝ Suitable for tanks up to 35 gallons freshwater or 20–25 gallons saltwater

• RS-3000 – 1200 L/H (317 GPH)

➝ Suitable for tanks up to 55–60 gallons freshwater or 35–40 gallons saltwater

• RS-4000 – 1600 L/H (422 GPH)

➝ Suitable for tanks up to 75–80 gallons freshwater or 45–55 gallons saltwater

What’s Included

• 1 × HOB Waterfall Filter Unit (choose your model)

• Intake tube and filter sponge (ready to use)