Description
The HW-304B combines external canister filtration with a built-in UV function for aquariums that need high-volume circulation. The supplier lists a 525 GPH flow, an 8.2 ft maximum head and suitability up to 200 gallons, but real performance depends on hose routing, media load and head height.
Product details
| Parent SKU | CJYC1570103 |
|---|---|
| Model | HW-304B |
| Listed flow | 525 GPH |
| Listed maximum aquarium capacity | 200 gallons |
| Listed maximum head | 8.2 ft |
| Materials | Plastic, metal and rubber |
| Electrical listing | 220 V, US plug |
Electrical mismatch warning
The source describes “220 V, US plug”, an unusual combination. Do not connect the filter until the voltage and plug markings on the delivered unit match your local supply and a compliant installation. Keep plugs and controls dry, use a drip loop and operate the UV lamp only inside its fully shielded housing.
Setup and maintenance
Prime and leak-test the canister before leaving it unattended. Arrange media to preserve flow, service seals and hoses regularly, and never run the pump dry. UV treatment can support water clarity but does not replace biological filtration, water changes, testing or appropriate stocking.
What is included
One HW-304B filter unit and one instruction manual. Filter media and additional fittings should be expected only if explicitly shown for the selected package.
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