Features: and high quality,Made of premium material for durable and practical use For BioPress / PondoPress Media Filter Foam Set Compatible model: For BioPress 4000 / PondoPress 5000 Foam Set Replacement Filter Foam for BioPress & PondoPress Pressure Filters Fit for BioPress/PondoPress Media Sets High quality filter foam media provides complete mechanical filtration Super porous foam material helps keep pond water crystal clear Foam filtration removes debris from the pond water Easy to install and maintain Specifications: Color: Black & Blue Material: sponge Package Contents: 1 x Filter Foam kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.