Description If the filter foam of your pond filter is damaged or needs to be replaced, you can find here a complete set of 4 sponges (2 coarse and 2 fine) as original parts for easy replacement. For our CBF-350C Pond FilterSunSun CBF-350B Spare Parts Filter Sponge - Coarse Reference50108-08Package Quantity1Dimensions230 x 85 x 200 mmSpare PartsCBF-350 (A/B/C) Weight [kg] 0.0840 Packaging: Height (mm) 95 Packaging: Length (mm) 235 Packaging: Width (mm) 200 Availability Immediately available, ships within 3-5 working days* Navigation Packaging Spare Parts for CBF-350B Filter Foam Density 225D-905D Pore density 10PPI-80PPI Pore density Porous material Porous material (activated carbon can be added) filter cotton Color Yellow/Blue Product performance (1) High open porosity. (2) Good air permeability. (4) (5) Harmless to human body, no environmental pollution, no odor. (6) Water-resistant, strong drainage after immersion. (7) Can be used twice, not easy to be damaged, no secondary pollution to the environment Scope of application Mainly used in the filter layer of air conditioners and vehicle air filters, aquarium filters, heat-resistant porous mesh ceramics fired with mesh sponges, sintered nickel alloy mesh after electroplating, cosmetics cleaning, swimming pools can be used as filter materials in the metallurgical industry, etc.