Need a filter for use with your ventilation system? This black sheet filter from RS PRO is made of open-cell polyurethane (PUR) foam that captures unwanted or harmful particles while still allowing air to pass through. The material delivers top performance in a range of environments thanks to its strength and flexibility.


The porosity rating of 30 PPI (pores per inch) helps boost performance by capturing particles and balancing airflow. It's also reusable, as it's strong and designed to keep its shape. This unit fixes onto the entrance frame to your ventilation system, so it's easy to remove, clean and reattach as needed.


The sheet filter's G3 grade means it has high-quality pores with a consistent dust-capturing rate. It's commonly used as a pre-filter for catching large particles that can damage your ventilation systems.