Filter holder Ira-20-1 Otkryty

Filter holder Ira - 20 - 1 Otkryty
IRA - 20 - 1 a filter holder open (the allonge, the aerosol boss), can be used for AFA brand filters.
It is made of aluminum or shock - resistant polystyrene.
Figures in marking indicate the sizes of the used filter. For example, the filter holder of IRA - 20 is applied complete with AFA - 20 filters. Diameter of filters is 70 mm.