Aquarium 604 Canister Filter 4-Piece Sponge & Cartridge Set

Keep Your Aquarium Crystal Clear with the 604 External Canister Filter Set

Upgrade your aquarium's filtration system with the Aquarium Filter 604 4-Piece Set, designed to fit EW-604 and HW-604 external canister filters. This complete replacement kit includes pre-filter sponges and filter cartridges, ensuring your tank water stays clean, clear, and healthy for your fish. Whether you're maintaining a freshwater community tank or a larger setup, this comprehensive filter media set delivers reliable mechanical and biological filtration performance.

Made in Mainland China.

Why Choose the 604 Canister Filter Set?

• Complete 4-Piece Kit: Includes all the filter media you need — pre-filter sponges and filter cartridges — so you can maintain peak filtration without hunting for individual parts.
• Compatible with EW-604 & HW-604: Engineered specifically for 604-series external canister filters, ensuring a precise, secure fit with no guesswork.
• Multi-Stage Filtration: The pre-filter sponge captures larger debris before it reaches the cartridge, extending the life of your filter media and reducing maintenance frequency.
• Promotes a Healthy Aquatic Environment: Effective mechanical and biological filtration removes waste, excess nutrients, and impurities, supporting the well-being of your fish and aquatic plants.
• Easy Replacement: Simple swap-out design means filter changes are quick and hassle-free — keeping your aquarium looking its best with minimal effort.
• Durable Materials: Made from high-quality, aquarium-safe materials that hold up to continuous submersion without degrading or leaching harmful substances.

What's Included

• Pre-filter sponge (fits 604-series pre-filter housing)
• Filter cartridge media
• 4-piece complete set for a full filter refresh

Compatible Models

This filter set is designed for use with the EW-604 and HW-604 external canister filter systems. Always verify your model number before purchasing to ensure compatibility.

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Frequently Asked Questions

Q: Which canister filter models is this 4-piece set compatible with?

A: This aquarium filter set is specifically designed to fit the EW-604 and HW-604 external canister filter models. The pre-filter sponge and filter cartridges are sized precisely for these 604-series units. We recommend checking your filter model number before ordering to confirm compatibility.

Q: How often should I replace the filter sponge and cartridge in my 604 canister filter?

A: As a general guideline, the pre-filter sponge can be rinsed and reused several times before needing replacement, while filter cartridges are typically replaced every 4–6 weeks depending on your tank's bio-load and water conditions. Having a full 4-piece set on hand means you're always prepared for timely maintenance without delays.

Q: Are the materials in this filter set safe for fish and aquatic plants?

A: Yes. All materials in this 604 canister filter set are made from aquarium-safe components that are non-toxic and will not leach harmful substances into your tank water. They are designed for continuous use in freshwater aquarium environments to support a safe and thriving aquatic ecosystem.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.