NIBCO 3/8 in. Copper X 1/2 in. D MIP Copper Pipe Adapter

NIBCO 3/8 in. Copper X 1/2 in. D MIP Copper Pipe Adapter delivers a dependable, lead-free transition from copper tubing to a 1/2" male pipe thread. Designed for durability and reliability in potable water systems, this adapter is built to withstand daily use while maintaining a secure, leak-free connection.

• Material: Copper with lead-free composition, ideal for safe potable water applications.
• End configurations: End 1 is a 3/8" copper tube connection; End 2 is a 1/2" MIP (male iron pipe) thread for straightforward threaded installations.
• Underground rated: Suitable for buried or underground services where a durable, corrosion-resistant connection is required.
• NSF listing: NSF-certified for potable water use, giving you confidence in safety and compliance.
• Maximum working pressure: Accepts up to 779 psi, offering versatility across a range of residential and commercial systems.
• Packaging: Bagged, with 1 piece per package for convenient storage and rotation in stock.

This adapter is ideal for converting a copper 3/8" line to a 1/2" threaded connection in applications such as under-sink supply lines, appliance hookups, irrigation systems, and other plumbing projects where copper piping must tie into threaded pipe fittings. The copper end provides a clean, solder-friendly surface for a reliable joint, while the 1/2" MIP end accepts standard female threaded fittings, enabling quick, secure assembly with appropriate thread sealants rated for potable water.

Why choose this NIBCO copper adapter? It combines lead-free safety with robust copper durability, maintaining water quality while resisting corrosion in challenging environments. Its underground rating adds versatility for installations that run beneath floors or into outdoor fixtures, reducing the need for multiple adapters or replacements down the line. For DIY homeowners and professional plumbers alike, this compact, high-performance connector simplifies transitions between copper tubing and threaded piping—without sacrificing reliability or compliance.

When installing, ensure a clean, properly prepared copper end and apply a suitable pipe thread sealant or PTFE tape rated for potable water to the MIP threads. Tighten to the manufacturer's recommended torque to achieve a secure, leak-free seal.