CBF350 Pond Filter Sponges (4 Pack): Effective Organic Filter Foam, Easy to Clean and Replace, Fine Blue, Coarse and Yellow Sponges for CBF-350 Pond Filters

💙[Double-Layer Filtration for Cleaner Water] - Our pond filter kit is made of two layers: coarse-grained blue sponges trap large debris like leaves and slime, while fine-grained yellow sponges remove small particles like dirt and algae. This leaves the water clearer and of better quality, creating a healthier environment for fish and plants. Ideal for garden ponds and large water features.

💙 [Safe and environmentally friendly materials] - Made from non-toxic and fish-safe materials, these filtration sponges promote a balanced aquatic ecosystem. They do not release any contaminants into the water and provide an ideal surface for the proliferation of bacteria which contribute to the natural decomposition of organic waste. Keep your pond clean without endangering the health of your aquatic animals.

Compatible with CBF series filters: These high quality sponge filters are specially designed for the CBF350 models and guarantee perfect compatibility with your existing filtration system. Simply replace your old sponges with these high-performance and efficient sponges for optimal filtration and pond water that is always fresh, clear and free of contaminants. Easy Maintenance & Durable: These filter sponges are designed for quick and easy replacement, reducing maintenance and improving filter efficiency. Regularly changing sponges ensures consistent water quality by preventing blockages and ensuring optimal flow. Ideal for pond owners looking for an efficient, low-maintenance filtration solution.💡 [Eco-friendly packaging and shape recovery] – To reduce environmental impact, our filter sponges are compressed for compact, eco-friendly packaging. They may appear distorted upon receipt, but this does not affect their filtration performance. Simply let them sit for a few hours or place them in water so that they return to their original shape. Thank you for supporting sustainable packaging solutions. Recommendation: For optimal water purification, replace the filter cotton every 10 months to 1 year.

Quantity: 2 blue large-pore sponges, 2 yellow fine-pore sponges. Blue: The large pores of the filter cotton trap and isolate coarse impurities, which are then broken down by nitrifying bacteria. Yellow: The small holes in the cotton filter trap and isolate small dirt particles.