Ultra-short-chain PFAS pose a significant challenge due to their high mobility and limited removal by conventional technologies. This presentation introduces the newly developed Lewatit® MDS TP 108 ion exchange resin and presents a case study demonstrating effective removal of ultra-short-chain PFAS from water matrices. In addition, the Lewatit® portfolio offers tailored solutions including Lewatit® TP 108 DW for drinking water applications and Lewatit® MP 62 WS, which can be efficiently regenerated using sodium hydroxide. The application of ion exchange in drinking water is discussed and performance is compared with activated carbon, highlighting how both technologies complement each other to optimize treatment efficiency as well as CAPEX and OPEX.