Gas detectors are vital to ensure worker safety in areas where hazardous gases can build-up or oxygen levels can dip alarmingly. Such gas monitoring devices need the pump filter to work efficiently. However, pumps can eventually clog and malfunction. Their filter should be changed for optimal performance. Hydrophobic pump filter by PowerPak is compatible with Gas Alert Micro Clip XL and Gas Alert Max XT II. It comes in set of 5. These replacement filters ensure no dust, debris or water gets inside the pump. Using an old filter can be dangerous as water can enter the pump and cause permanent damage. These hydrophobic filters ensure a quick, hassle-free replacement.