PURIFYING SALTS. 1 L

REF: FNAAP150 CAT: ,

Special purifying salts for old welders with Purifying Filter.

They are used to dry the gas generated by the oxyhydrogen welder. The filter salts must be changed once they are saturated. When the salts change from blue to pink, it means that they have reached the end of their life and must be replaced by new ones.