We provide AF/FM and AF/FF instrumentation filters for contamination removal. AF/FM and AF/FF are specially designed low-cost filters for pipeline instrumentation that are available in a number of configurations to meet the needs of various users. Filters are used to remove contaminants from the air, such as dust and aerosols. AF/FM and AF/FF filters can work at pressures of up to 100 bar. The unit is made of R14″ material. As described in DVGW worksheet G260 L, it is effective in gas group 2. Temperatures between -20°C and +60°C are appropriate for use.