Acid Recovery Chemicals / Acid Recovery and Zero Acid Discharge Systems for Metal Finishing Industries Polyfill Microns Pvt. Ltd. is an authorized distributor in and around India for PRO.pHx acid life extender, a patented, environmentally sustainable product from Wagner Environmental Technologies LLC, USA. PRO. pHx eliminates acid disposal and treatment cost for Galvanizing, Anodizing, Electroplating, Wire and Rod Plants, Steel Mills, Circuit Board Printing, Gravures & All Industries involved in Activation, Passivation, Stripping, Pickling & Cleaning. PRO • pHx provides an answer for the high cost of Acid Disposal & Acid Replacement. PRO-pHx acid life extender purifies acids, removes metals & organics and eliminates acid disposal.