SunSun HW-603B External Canister Filter

Buy SunSun HW-603B compact canister in India — 6W, 400 L/H for nano and small planted tanks.

Price: ₹2178.00 · In stock

The SunSun HW-603B is a compact external canister: 6W, 400 L/H rated, for nano and small planted tanks that want cabinet plumbing without an HW-302 footprint. Listed specs: 6W · 400 L/H · compact canister. Desktop scapes and 30–60 cm tanks where a HOB would spoil the canopy but a 302 would be oversized. Short hose runs. Prime carefully — small canisters lose prime faster if the O-ring is dry. Tiny baskets clog faster. Keep a spare pad. Do not overfill ceramics so the pump cavitates. ## FAQ **603B vs YBF-500?** 603B hides in a cabinet with in/out hoses. YBF hangs on the rim. Pick by furniture, not just litres. **Real flow?** Expect less than 400 L/H once media is loaded. **Shrimp?** Yes with a prefilter sponge on the intake. **Step up?** [HW-302](/product/sunsun-hw-302-external-filter) when baskets clog twice a week. Aquaroutine ships this SKU across India with a GST invoice. Match the wattage, flow, and footprint to your tank before you add livestock or dense stems. If a number on the carton disagrees with this page, trust the model printed on the housing and write to support with a photo of the label. We stock this as a repeatable equipment SKU, not a one-off stone — use the listing specs when you compare hang-on, canister, light length, or sponge size against the tank you already own.

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