Pre-filter SR 221 that protects the main filter against premature clogging by larger particles. It should always be used for particle, gas and combined filters. Fits on aShow details
Pre-filter SR 221 that protects the main filter against premature clogging by larger particles. It should always be used for particle, gas and combined filters. Fits on all Sundström half- and full masks, and fan units. Carton: 10 boxes of 80 pcs.Show less