3/4 inch x 1 inch PEX Brass Reducing Insert Adapter Crimp x Female

3/4 inch x 1 inch Crimp PEX x FIP Adapter – Lead-Free Brass Transition Fitting

This 3/4 inch PEX x 1 inch Female NPT adapter is designed for use in potable water distribution systems and hydronic piping applications requiring a secure transition from PEX tubing to threaded pipe or components. Manufactured from lead-free brass, it supports compliance with federal and state plumbing codes for drinking water safety.

The fitting incorporates a crimp PEX connection on one end and a precision-machined female National Pipe Thread (FIP) on the other. Suitable for use with ASTM F1807 crimp ring or F2159 clamp connection systems, it ensures a reliable mechanical joint between PEX tubing and threaded copper, brass, or galvanized fittings.

Product Features

• ✅ Material: Lead-free forged brass compliant with NSF/ANSI 61 & 372
• ✅ Connection: ASTM F1807 PEX crimp x ANSI B1.20.1 Female NPT
• ✅ Pressure Rating: Typically rated to 200 PSI at 73°F (subject to system specs)
• ✅ Temperature Range: Suitable for cold and hot potable water up to 200°F
• ✅ Corrosion Resistant: Brass construction resists dezincification and scale formation

Installation Guidelines

Install using standard copper crimp rings or stainless steel PEX clamps with compatible tools per ASTM specifications. Apply thread sealant or PTFE tape to the FIP end before mating with threaded pipe or fittings. Verify compatibility with pipe materials, and ensure alignment to prevent stress on connection points. Crimp connections should be verified using an appropriate gauge for conformance.

Typical Applications

• Potable water distribution systems (residential and light commercial)
• Hydronic radiant heating loops and zone branches
• Transitioning between PEX tubing and threaded supply lines or fixtures
• System retrofits or manifold extensions where hybrid pipe materials are used

Code Compliance

This fitting meets Safe Drinking Water Act (SDWA) lead-free requirements and is third-party certified under NSF/ANSI standards for use in potable water systems. Suitable for use in jurisdictions enforcing IPC, UPC, and state-specific plumbing codes.

The 3/4 inch x 1 inch Crimp PEX x FIP adapter provides a durable, code-approved solution for transitioning between PEX and threaded systems. Its dimensional consistency and pressure-sealing performance make it a dependable choice for high-integrity installations.