Determine the specific model and type of your PALL filter element. This information is usually found on the filter housing or in the equipment manual. Purchase the correct replacement filter element. You can contact PALL directly, check their website, or reach out to authorized distributors. Before replacing the filter, ensure the system is shut down and depressurized. Use appropriate personal protective equipment (PPE).Open the filter housing as per the manufacturer’s instructions. Carefully remove the old filter element, noting how it’s installed. Insert the new filter element, ensuring it’s seated properly. Follow any specific orientation guidelines.