SUNSUN HW-703B & HW-704B Canister Filter with UV Sterilizer

The SUNSUN Canister Filter – UV Compatible Models provides powerful and efficient external filtration for freshwater aquariums and water tanks. Available in HW-703B and HW-704B models, these filters combine high-capacity multi-stage filtration with a built-in UV sterilizer to help maintain clean, clear, and healthy aquarium water.

Featuring a built-in motor, manual priming pump, 4-layer filter basket system, and 9W UV light, the SUNSUN HW-B series is designed to provide effective mechanical, biological, and chemical filtration while the UV system helps control free-floating algae and microorganisms in the water.

Built-In 9W UV Sterilizer

The integrated 9W ultraviolet sterilizer helps control free-floating algae and microorganisms as aquarium water passes through the filtration system. This can help improve water clarity and support better overall aquarium water quality.

4-Layer Filtration System

The spacious 4-layer filter basket system allows different types of filter media to be arranged according to your aquarium’s requirements. Mechanical, biological, and chemical filter media can be combined to create an effective multi-stage filtration system.

Manual Priming Pump

The built-in manual priming pump makes starting the canister filter easier by helping draw aquarium water into the filtration system without requiring manual siphoning.

Key Features

• Powerful external canister filtration system
• Built-in motor
• Built-in manual priming pump
• 9W UV sterilizer
• Helps control free-floating algae and microorganisms
• 4-layer filter basket system
• Supports mechanical, biological, and chemical filtration
• Large filter media capacity
• Suitable for freshwater aquariums and water tanks
• Available in two powerful models: HW-703B and HW-704B

Available Models

SUNSUN HW-703B

• Motor Wattage: 30W
• UV Bulb Wattage: 9W
• Maximum Flow Rate: 1400 L/H
• Maximum Lift: 2.0m
• Power Cable Length: 1.8m
• Weight: 4.5kg
• Dimensions: 270 × 270 × 440mm

SUNSUN HW-704B

• Motor Wattage: 45W
• UV Bulb Wattage: 9W
• Maximum Flow Rate: 2000 L/H
• Maximum Lift: 2.5m
• Power Cable Length: 1.8m
• Weight: 5.0kg
• Dimensions: 300 × 300 × 490mm

Model Comparison

Suitable For

• Freshwater aquariums
• Large community aquariums
• Predatory and monster fish aquariums
• Planted aquariums
• Water tanks requiring external filtration

SUNSUN HW-703B and HW-704B Canister Filters are excellent choices for aquarium keepers looking for powerful water circulation, high-capacity multi-stage filtration, and the added benefit of built-in UV sterilization in one external filtration system.