Green Leaf CPLG050 1/2 Inch Polypropylene Pipe Coupling

Product Description

The GREEN LEAF CPLG050 is a 1/2-inch polypropylene pipe coupling designed for joining threaded pipe runs in potable water, chemical handling, and general plumbing systems. Constructed from black polypropylene, this coupling resists corrosion and handles a wide range of fluid types that would degrade metal fittings over time. Both end connections are female NPT (FNPT x FNPT), allowing direct makeup onto male-threaded pipe or nipples without adapters. It carries NSF 61 and NSF 372 certifications, confirming suitability for potable water contact and compliance with lead-free requirements. Plumbers and pipefitters install this fitting in residential and light commercial piping applications where a durable, code-compliant threaded coupling is needed.

The CPLG050 is suited for residential and commercial plumbing installations, irrigation systems, chemical distribution lines, and pool and spa plumbing where threaded polypropylene fittings are specified. The FNPT x FNPT configuration makes it compatible with standard NPT-threaded male pipe ends. Its black polypropylene construction is commonly selected for applications where UV resistance or chemical compatibility is a factor compared to standard PVC or CPVC fittings.

Key Features

• 1/2-inch fitting size with FNPT x FNPT end connections for straightforward threaded assembly
• Polypropylene construction resists corrosion, chemicals, and moisture
• NSF 61 certified for potable water contact
• NSF 372 certified for lead-free compliance
• Black color provides UV resistance for exposed or semi-exposed installations
• Lightweight at 0.03 pounds, reducing load in overhead or multi-fitting assemblies

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2-inch NPT-threaded pipe systems using polypropylene or compatible thermoplastic components.

Installation Notes

Installation is typically performed by licensed plumbers working under applicable IPC or local plumbing codes. Shut off the water supply and depressurize the line before disassembly or fitting installation. Apply thread sealant tape or paste rated for plastic fittings to the male threads before makeup — do not overtighten, as polypropylene threads can crack under excessive torque. Inspect threads on mating pipe for damage before assembly.