3-Pack Pre-Filter Sponges for HW-602 HW-603B Canister Filters

3-Pack Replacement Pre-Filter Sponges for HW-602 / HW-603B External Canister Filters

Keep your aquarium's filtration system running at peak performance with these high-quality replacement pre-filter sponges. Designed as a direct fit for the HW-602 and HW-603B external canister filters, this 3-piece set ensures your tank water stays crystal clear by trapping debris before it reaches the main filter media — extending the life of your canister filter and reducing maintenance time.

Key Features

• Compatible Models: Designed specifically for HW-602 and HW-603B external aquarium canister filters
• 3-Piece Set: Includes 3 sponges (Blue, Yellow, and Black) for multi-stage mechanical filtration
• Premium Sponge Material: Made from durable, aquarium-safe sponge for effective debris capture and long-lasting use
• Multi-Stage Filtration: Different pore densities work together to catch coarse and fine particles, keeping water cleaner for longer
• Easy Maintenance: Simply rinse and reuse, or swap out with a fresh sponge when needed
• Protects Main Media: Acts as a pre-filter barrier, reducing clogging of biological and chemical filter media
• Brand New & High Quality: Each sponge is manufactured to precise specifications for a secure, reliable fit

Specifications

• Material: Sponge
• Colors: Blue / Yellow / Black
• Quantity: 3 PCS per pack
• Compatible With: HW-602, HW-603B External Aquarium Canister Filters
• Country of Origin: Made in China

Package Includes

• 3 × Replacement Pre-Filter Sponges (1 Blue, 1 Yellow, 1 Black)

Please Note

• Photos may not reflect actual size — please refer to the description for sizing details.
• Allow 5–10mm variance due to manual measurement.
• Actual color may vary slightly from images due to monitor display differences.

You Might Also Like

Looking for more home and wellness accessories? Check out these popular picks from our store:

• 792LEDs L7 Large Red Light Therapy LED Panel – Full Body & Pet Use
• 3D Sleep Mask – Soft Breathable Light-Blocking Eye Mask

Learn more: U.S. Fish and Wildlife Service

Frequently Asked Questions

Q: Which canister filter models are these replacement sponges compatible with?

A: These pre-filter sponges are specifically designed to fit the HW-602 and HW-603B external aquarium canister filters. Please verify your filter model before purchasing to ensure compatibility.

Q: How often should I replace or clean the pre-filter sponges?

A: It is recommended to rinse the sponges during your regular aquarium maintenance routine — typically every 2–4 weeks depending on your tank's bio-load. Replace the sponges when they show signs of deterioration or can no longer be effectively cleaned.

Q: Why are there three different colored sponges in the pack?

A: The three sponges (blue, yellow, and black) may feature different pore densities, allowing for multi-stage mechanical filtration. Coarser sponges capture larger debris while finer ones trap smaller particles, working together to maximize water clarity and protect downstream filter media.

Q: Are these sponges safe for freshwater and saltwater aquariums?

A: Yes, these sponges are made from aquarium-safe sponge material suitable for use in both freshwater and saltwater tank setups with compatible HW-602/HW-603B canister filters.

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.