Waterdrop TSA 8 Layer Under Sink Water Filter System, Under Sink Water Filtration System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste and Odor, NSF/ANSI 42 Certified Element, USA Tech Extra Waterdrop WD-10PP Under Sink Water Filter, Replacement for Waterdrop TSA and TSB and TSB-CM 3-stage Under Sink Water Filter System, Compatibility: Suitable for faucets with 1/2 in. or 3/8 in. FEMALE NPT thread. If a female threaded connector is needed to connect to your faucet, please contact us BEFORE purchase. More filters, better taste: This under sink water filter system comes with 3 filters and can realize 8-stage deep filtration to reduce PFAS, PFOA/PFOS, residual chlorine, fluorides, heavy metals, silt, rust, cyst, etc. Its KDF materials can effectively reduce heavy metals. Its resin reduces fluorides. The CT filter has passed IAPMO certification to reduce residual chlorine and improve taste, thereby ensuring every drop is pure and healthy. National Geographic recommended: The Waterdrop TSA is an under sink water filter recommended by National Geographic. It is compact and easy to install. The filter's space-saving design fits neatly under most sinks, leaving ample room for other plumbing and storage needs. Its quick-connect fittings allow for a straightforward setup that can be completed without hiring a professional.