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Keep your aquarium water crystal clear and healthy with the SunSun HW-Series External Canister Filter with built-in UV steriliser.
Available in three sizes – HW-402B, HW-403B, and HW-404B – these filters combine multi-stage mechanical, biological and chemical filtration with a 9 W UV-C steriliser that helps eliminate green water, algae spores and harmful microorganisms.
Ideal for freshwater and marine aquariums up to 600 L, the HW-Series offers powerful performance, quiet operation and easy maintenance, making it a trusted choice for both beginner and advanced aquarists.
Key Features:
Integrated 9 W UV-C steriliser for crystal-clear water and algae control
Multi-stage filtration: mechanical sponges, biological ceramics, and optional chemical media
Flow rates:
HW-402B – 1000 L/h (for tanks up to 250 L)
HW-403B – 1400 L/h (for tanks up to 400 L)
HW-404B – 2000 L/h (for tanks up to 600 L)
Large filter baskets for customisable media setup
Quiet, energy-efficient motor with self-priming system
Quick-release hose locks for easy cleaning
Suitable for both freshwater and marine aquariums
Supplied complete with hoses, pipes and starter filter media
Usage Tips:
Position the canister below the aquarium for best siphon flow.
Always rinse new media in aquarium water before installation.
Clean mechanical media every 4–6 weeks; avoid washing biological media with tap water.
Replace UV bulb every 6–12 months for best sterilisation performance.
Do not operate the UV steriliser while medicating fish.
