1 inch PEX Brass Insert Adapter PEX x Male
63 Available At All US Supply Locations

1 Inch PEX Brass Insert Adapter – PEX x Male NPT for Cold and Hot Water Systems
The 1 inch PEX Brass Insert Adapter PEX x Male is a transition fitting used to connect cross-linked polyethylene (PEX) tubing to components with female threaded ports. Designed for use in residential and light commercial plumbing systems, this fitting enables a secure and code-compliant transition between flexible tubing and rigid threaded assemblies.
Manufactured from lead-free brass, this adapter is suitable for potable water applications and is compatible with ASTM F1807 and F877 PEX installation standards when used with appropriate crimp or clamp ring systems.
Key Performance Attributes
- ✅ PEX Barb x MPT Configuration – Connects 1 inch nominal PEX tubing to female NPT-threaded valves, fittings, or fixtures.
- ✅ Precision-Machined Threads – NPT threads conform to ANSI/ASME B1.20.1, ensuring a tight mechanical seal when installed with PTFE tape or approved thread sealant.
- ✅ Lead-Free Brass Composition – Compliant with NSF/ANSI 61 and 372 standards for use in potable water systems regulated by federal and state codes.
- ✅ Durability and Corrosion Resistance – Designed for long-term performance in both cold and hot water service lines, including distribution manifolds and mechanical equipment tie-ins.
Installation Guidelines
This fitting is compatible with crimp, clamp, or expansion PEX systems depending on tubing and tooling used. To ensure a secure and leak-free connection:
- Use an ASTM F1807-approved crimp ring or stainless steel clamp ring for the barb side.
- Apply PTFE tape or thread compound to male threads prior to engagement with mating component.
- Avoid over-torquing to preserve thread integrity and prevent deformation.
Typical Applications
Commonly installed in water heater connections, fixture supply branches, meter assemblies, and manifold terminations, this adapter serves as a critical transition between PEX tubing systems and threaded system components. Suitable for new construction and retrofit installations in both vertical and horizontal pipe runs.
Material and Code Compliance
Constructed from lead-free brass in compliance with the Reduction of Lead in Drinking Water Act. Certified to NSF/ANSI 61 and 372 and compatible with IPC, UPC, and local code requirements for potable water system fittings.
Technical Specifications
- Material: Lead-Free Brass
- Nominal Size: 1 inch
- Connection Type: PEX Barb x Male NPT
- Certifications: NSF/ANSI 61, NSF/ANSI 372; ASTM F1807 compliant
The 1 inch PEX Brass Insert Adapter provides a reliable and code-approved solution for threaded transitions in PEX water distribution systems. Its robust construction and compatibility with industry-standard installation methods make it a standard component in modern plumbing assemblies.
Specifications
| Weight | 4.000000 |
|---|---|
| Brand | Uponor |
| ADA Compliance | No |
| Length (inches) | 10 |
| Width (inches) | 6 |
| Height (inches) | 1 |
| End Style | PEX x Male |
| Side A | 1" |
| Side B | 1" |
| Fitting Type | PEX Fittings |
| Item Type | Fittings |
| Manufacturer | GF Building Flow Solutions |
| MPN | LF4521010 |
| Material | Brass |
| Product Family | Fittings |
| Item Returns | This item can be returned |
