Engineered for residential and commercial plumbing systems, our Premium Poly PEX Plugs provide a highly dependable, leak-free solution for temporarily or permanently terminating open PEX tubing runs. Manufactured to strict ASTM F2159 standards from engineered polysulfone (PPSU) resin, these crimp-style end plugs offer excellent chemical resistance, zero corrosion risk, and safe operation for domestic drinking water networks.
Featuring a precision-molded barbed end on one side and a solid, sealed face on the other, these plugs allow you to quickly cap off water lines during system additions, multi-stage renovations, or pressure testing. They work seamlessly with either copper crimp rings or stainless steel pinch clamps, ensuring a permanent connection that handles constant pressure changes while remaining completely immune to hard water scale and corrosion.
Key Features and Benefits
ASTM F2159 Standard Compliance: Precision-engineered to match universal mechanical dimensions for plastic insert-style PEX systems, ensuring perfect compatibility with all major brands of PEX-A, PEX-B, and PEX-C tubing.
High-Performance Polysulfone Resin: Molded from premium engineered plastic that meets the strict requirements of NSF/ANSI 61 and NSF/ANSI 372 standards. It is 100 percent lead-free and safe for domestic drinking water systems.
Zero Corrosion or Scale Buildup: Completely immune to dezincification, oxidation, and mineral pitting. This makes it the ideal choice for geographic areas with aggressive, high-acid, or hard water conditions.
Leak-Proof Line Termination: Provides a reliable, air-tight and water-tight seal at the end of a plumbing run, allowing you to isolate specific zones or safely leave stub-out lines behind finished drywall.
Dual Connection System Compatibility: Highly versatile fitting design that can be secured using standard copper crimp rings with a traditional crimping tool, or stainless steel cinch clamps with a universal pincer tool.
Technical Specifications
Manufacturing Standard: ASTM F2159 (Plastic Insert Fittings Utilizing Copper Crimp Rings for PEX Tubing)
Material Standard: Premium Polysulfone (PPSU) Blend (NSF 61 and NSF 372 Certified)
Connection Type: PEX Crimp Barb to Closed Solid Face (Barb End Plug)
Maximum Temperature Rating: 200 degrees Fahrenheit (93 degrees Celsius)
Maximum Pressure Rating: 160 PSI at 73 degrees Fahrenheit / 80 PSI at 180 degrees Fahrenheit
Fluid Compatibility: Potable water supply, radiant in-floor heating, graywater loops, and chlorinated water lines
Ideal Applications
Capping Off Open PEX Water Lines During Pressure Testing and Inspection
Plumbing Systems in Geographic Areas with Highly Corrosive or Hard Water Conditions
Terminating Future Expansion Lines or Abandoned Stub-Outs Behind Finished Framing
Isolating Specific Plumbing Zones During Home Renovation and Repair Work
