It is a low pH value of liquid formulations for the removal of metal hydroxides, calcium carbonate and other types of scaling, which applies to aromatic polyamide reverse osmosis membrane, hollow fiber membrane and nanofiltration (NF) and ultrafiltration (UF), an excellent cleaning effect can be extended run-time films. Product features: Apply to all aromatic polyamide membranes and cellulose acetate membrane. Low foam formula.