Check the listing for details. EFIELD 10PCS 1/2" PEX x 1/2" Male NPT Adapters Crimp Brass Fittings ,Lead Free. Condition: New. Listed at 18.99 USD. 10 PCS 1/2" PEX x 1/2" MPT Adapters (PEX x Male Threaded)Made from lead-free brass, complies with 2014 SDWA and is approved for potable water applications. PEX x MPT (Male NPT) Threaded adapters allow to transition between a PEX pipe and threaded fitting. Compatible with all types and brands of PEX Tubing: And the following connection systems: Crimp Connection System (PEX Crimp Tool + Copper Crimp Rings);Clamp (Cinch) Connection System (PEX Clamp Tool + Stainless Steel PEX Clamps).Standards & Certifications: Manufactured to ASTM standard F1807, certified for potable water applications (NSF 61-G), compatible with any SDR-9 (U.S. standard) PEX tubing.10 PCS 1/2" PEX x 1/2" MPT Adapters (PEX x Male Threaded)Made from lead-free brass, complies with 2014 SDWA and is approved for potable water applications. PEX x MPT (Male NPT) Threaded adapters allow to transition between a PEX pipe and threaded fitting. Compatible with all types and brands of PEX Tubing: And the following connection systems: Crimp Connection System (PEX Crimp Tool + Copper Crimp Rings);Clamp (Cinch) Connection System (PEX Clamp Tool + Stainless Steel PEX Clamps).Standards & Certifications: Manufactured to ASTM standard F1807, certified for potable water applications (NSF 61-G), compatible with any SDR-9 (U.S. standard) PEX tubing.