These round reticulated foam discs are manufactured from open-cell polyurethane foam designed for high airflow and fluid permeability. With a consistent 58 mm diameter and 20 mm thickness, each disc provides uniform structure and reliable performance across a wide range of applications. The 30 PPI (pores per inch) structure offers an ideal balance between airflow and surface area, making these discs suitable for both air and liquid movement. The open-cell design allows for efficient drainage and circulation, while maintaining durability and shape over repeated use. These foam discs are highly versatile and can be used in filtration setups, airflow management, cushioning, wicking, venting, and general-purpose applications. They are also suitable for cosmetic brush cleaning, tool cleaning, and other uses where gentle scrubbing and quick drainage are beneficial. The material is lightweight, flexible, and easy to modify. Discs can be trimmed or shaped to meet specific requirements without compromising structural integrity. Depending on the application, they can also be rinsed and reused. Key Specifications: Diameter: 58 mm Thickness: 20 mm Porosity: 30 PPI Material: Reticulated (open cell) polyurethane foam Color: White