Aquarium Filter Sponge Pads for SunSun GRECH 304AB 404AB 704AB

Keep Your Aquarium Crystal Clear with Premium Filter Sponge Pads

Upgrade your canister filter's performance with these high-quality blue and white foam cotton filter pads. Precisely designed as a direct replacement for SunSun GRECH canister filters (304AB / 404AB / 704AB), these sponge pads effectively capture large waste particles, debris, and organic matter — keeping your aquarium water clean, clear, and healthy for your fish and aquatic life.

Key Features

• Perfect Fit: Custom-designed specifically for SunSun GRECH 304AB, 404AB, and 704AB canister filters — no trimming needed.
• Dual-Layer Filtration: Blue and white foam cotton layers work together to trap coarse and fine particles for thorough mechanical filtration.
• Reusable & Long-Lasting: Simply rinse and reuse — these durable sponge pads are built to withstand repeated cleaning without losing their shape or effectiveness.
• High-Quality Material: Made from premium foam cotton that is gentle on beneficial bacteria colonies essential to a balanced aquarium ecosystem.
• Great Value: Available in 2-pack or 4-pack so you always have a fresh pad ready when it's time to rotate.

Specifications

• Material: Foam Cotton (Blue & White)
• Size: 22 × 21 cm
• Compatible Models: SunSun GRECH 304AB / 404AB / 704AB Canister Filters
• Package Quantity: 2 Pcs or 4 Pcs (select your preferred option)
• Country of Origin: Made in China

Note: Please allow 2–3% dimensional variance due to manual measurement. Colors may appear slightly different on screen compared to the actual product.

Related Products You May Like

• 1PC Extended Straw Vacuum Cleaner Aquarium Water Exchanger – Simple Cleaning Tool
• 1PC Pet Hair Removal Tool – Reusable Double-Sided Grooming Gloves
• 10M Parrot Bird Harness Leash – Outdoor Adjustable Training Rope

Learn more: U.S. Fish and Wildlife Service

Frequently Asked Questions

Q: Which canister filter models are these aquarium sponge pads compatible with?

A: These filter pads are custom-designed as a direct replacement for SunSun GRECH canister filter models 304AB, 404AB, and 704AB. They are sized at 22 × 21 cm to fit these units precisely without any modification.

Q: Can I reuse these aquarium filter sponge pads after cleaning?

A: Yes! These foam cotton filter pads are fully reusable. Simply rinse them in dechlorinated or aquarium water (avoid tap water to protect beneficial bacteria), squeeze out the debris, and place them back in the canister filter. Replace them when they begin to deteriorate or no longer hold their shape.

Q: What do the blue and white colors of the filter pads indicate?

A: The two colors represent different foam densities designed for layered mechanical filtration. The coarser blue sponge captures larger waste particles first, while the finer white sponge catches smaller debris, together providing efficient two-stage water filtration for your aquarium.

Q: Should I buy the 2-pack or 4-pack of filter sponge pads?

A: The 4-pack is the better value option and ensures you always have a clean replacement pad on hand. When one pad is being cleaned and dried, you can keep your filter running smoothly with a fresh pad — maintaining uninterrupted filtration for your aquarium.

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.