ngineered for residential and commercial potable water plumbing, our Premium Poly PEX Couplings provide a highly dependable, leak-free connection to join two pieces of PEX tubing together. Manufactured to strict ASTM F2159 standards from engineered polysulfone (PPSU) resin, these straight insert fittings offer excellent chemical resistance, zero corrosion risk, and safe operation for domestic drinking water networks.
Featuring precision-molded barbed ends, these plastic couplings provide an immediate, uniform grip inside the pipe wall. They are designed to work seamlessly with either copper crimp rings or stainless steel pinch clamps, ensuring a permanent connection that handles constant pressure changes and thermal expansion 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.
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.
Cost-Effective and Durable: Offers a lightweight, budget-friendly alternative to traditional brass fittings without sacrificing burst pressure limits, structural integrity, or long-term durability behind walls.
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: Crimp / Barbed on both ends (Barb x Barb)
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
Connecting Straight Runs or Repairing Spliced PEX Tubing in Home Plumbing
Plumbing Systems in Geographic Areas with Highly Corrosive or Hard Water Conditions
Fabricating Main PEX Supply Manifolds and Distribution Loops on a Budget
Commercial Building Mechanical Builds and Institutional Domestic Water Lines
