Parker 66PLP-4-2 Push-to-connect Female Connector

Product Description

The PARKER 66PLP-4-2 is a push-to-connect tube-to-female NPT fitting designed for fast, tool-free tube connections in pneumatic and fluid systems. Built from nickel-plated brass, it accepts 1/4 inch OD tubing on each tube port and terminates with a 1/8 inch NPTF female thread. It handles up to 300 psi working pressure and operates across a temperature range of 0 to 200 degrees F. The push-to-connect mechanism uses a black, flame-resistant button rated to UL94 V-0, and an internal nitrile O-ring provides a reliable seal. Licensed plumbers, HVAC technicians, and pneumatic system installers use this fitting where a quick inline female connection is needed without soldering or flare tooling.

This fitting is suited for residential and light commercial pneumatic, instrumentation, and fluid transfer applications. It is commonly installed in compressed air lines, HVAC controls, refrigeration ancillary circuits, and fluid-handling systems where 1/4 inch OD tubing terminates at a female NPT port. The NPTF thread form creates a pressure-tight seal at the threaded end without requiring tape or sealant compound on properly machined ports, though installers often apply thread sealant per local code and system requirements.

Key Features

• Push-to-connect design allows tool-free tube insertion and removal via the release button
• Nickel-plated brass body resists corrosion in moisture-exposed service environments
• Rated to 300 psi maximum working pressure
• Operates from 0 degrees F to 200 degrees F
• UL94 V-0 flame-resistant black release button
• Nitrile O-ring provides a durable, leak-resistant internal seal

Compatibility

Designed as an OEM-style push-to-connect fitting for systems using 1/4 inch OD tubing with a 1/8 inch NPTF female threaded port connection.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or pneumatic system technicians. Always depressurize and isolate the line before removing or inserting fittings. Ensure tubing is cut square and free of burrs before inserting into the push-to-connect port for a leak-free seal. Verify thread compatibility and apply appropriate thread sealant at the NPTF connection per local mechanical codes and the system manufacturer's requirements.