SunSun HW-304B External Canister Filter 2000L/H with Built-In 9W UV Steriliser for Aquariums 300–500L

The SunSun HW-304B is a high-capacity external canister filter designed for freshwater and marine aquariums from 300 to 800 litres. Combining powerful mechanical, biological, and chemical filtration with a built-in UV-C steriliser, it helps maintain crystal-clear, healthy water while reducing algae, bacteria, and harmful microorganisms.

The integrated UV-C steriliser combats green water, floating algae, bacteria, and parasites by exposing the water to high-intensity ultraviolet light without affecting the aquarium’s water chemistry. The UV bulb has an operating life of up to 10,000 hours, providing long-lasting water clarification.

Designed for convenience, the HW-304B features a one-button self-priming system, removable quick-release hose block with Start-Stop valves, and removable media baskets with carrying handles for easy maintenance. The included spray bar improves water circulation and oxygenation, while the supplied surface skimmer removes protein film and floating debris for a cleaner water surface.

With four spacious media baskets, the filter can be configured with a wide range of filter media to suit freshwater, planted, cichlid, or marine aquariums.

Key Features

• Suitable for freshwater and marine aquariums from 300–500 litres
• Powerful 2000 L/h flow rate
• Built-in UV-C steriliser for algae and bacteria control
• Four large filter media baskets
• One-button self-priming system
• Quick-release Start-Stop valve block
• Mechanical, biological, and chemical filtration
• Includes spray bar for improved circulation and aeration
• Includes surface skimmer for removing protein film
• Quiet operation
• Easy maintenance with removable filter baskets

Benefits

• Maintains crystal-clear aquarium water
• Helps eliminate green water and floating algae
• Reduces harmful bacteria and parasites
• Improves oxygenation through the spray bar
• Removes surface film and floating debris
• Large media capacity for customised filtration
• Easy installation and servicing

Package Includes

• SunSun HW-304B external canister filter
• Built-in UV-C steriliser
• 4 × filter media baskets
• 4 × filter floss pads
• Surface skimmer
• Spray bar
• Inlet and outlet pipe sets
• Hoses
• Quick-release valve assembly
• Installation accessories

Technical Specifications

• Brand: SunSun
• Model: HW-304B
• Product Type: External Canister Filter with UV Steriliser
• Recommended Aquarium Size: 300–500 Litres
• Maximum Flow Rate: 2000 L/h
• Power Consumption: 55W
• Number of Media Baskets: 4
• Maximum Head Height: 2.5 m
• Dimensions: 290 × 290 × 485 mm
• Power Supply: 230V / 50Hz
• UV-C Steriliser: Built-in
• UV Bulb Life: Up to 10,000 hours
• Suitable for: Freshwater and marine aquariums