Generic replacement filter sponges compatible with Sunsun CBF-200T, CBF-350, CBF-350B, CBF-350C, and CBF-550 pond filters. 2-in-1 bio filter sponge for ornamental ponds, clean water.

Perfect Compatibility: These replacement filter sponges are designed exclusively for Sunsun pond filter models CBF-200T, CBF-350, CBF-350B, CBF-350C, and CBF-550. A perfect fit, direct replacement without any modifications, ideal for decorative ponds of all sizes.

2-in-1 Filtration Technology: The kit consists of coarse blue filter sponges (to remove large particles such as sludge, algae, and excrement) and fine yellow filter sponges (to filter out small impurities and bacteria). Ensures superior water clarity and a healthy pond ecosystem.

Premium Material: Made of durable and absorbent filter foam (not cotton, as incorrectly stated), sturdy, long-lasting, and won't easily deform.

Promotes the colonization of beneficial bacteria for effective biological filtration. Easy maintenance and replacement: The filter sponges are easy to clean (rinse with warm water) and can be quickly replaced. Reduces your pond maintenance time and keeps your decorative pond permanently clean. Versatile use: Suitable for decorative ponds, koi ponds, and aquariums; fits various pond sizes. Ideal for daily filtration to ensure a thriving aquatic ecosystem and crystal-clear water.