Parker PP6MC4 Push-to-connect Tube Fitting 3/8in Od

Product Description

The PARKER PP6MC4 is a push-to-connect tube-to-pipe connector fitting designed for quick, tool-free tube connections in low-pressure fluid and pneumatic systems. Constructed from polypropylene in a tan finish, this fitting accepts 3/8 inch OD tubing on the push-connect end and threads into a 1/4 inch NPTF female port on the pipe side. It is rated to 150 psi, making it suitable for water, air, and compatible fluid lines in light-duty plumbing and instrumentation applications. Plumbers, HVAC technicians, and industrial service pros use this type of connector where fast, reliable tube terminations are needed without soldering or compression tools.

This fitting is used in residential and light commercial plumbing, HVAC condensate drain lines, water treatment systems, and pneumatic control circuits. The push-to-connect design allows field installation without special tooling, speeding up service calls and new installations. The polypropylene body resists corrosion and is compatible with many water-based and mildly aggressive fluid systems. It is sold and shipped as a single unit.

Key Features

• Push-to-connect design — no tools required for tube insertion
• 3/8 inch OD tube connection with 1/4 inch NPTF male pipe thread
• Polypropylene construction for corrosion resistance
• Rated to 150 psi working pressure
• Tan color for easy identification in multi-line installations
• Compact, single-piece connector body

Compatibility

Designed as an OEM-style replacement or direct-install fitting for systems using 3/8 inch OD tubing with 1/4 inch NPTF female pipe ports in light-duty plumbing, HVAC, or pneumatic applications.

Installation Notes

Installation is performed by plumbers or HVAC technicians during new construction or service. Before connecting or disconnecting, shut off system pressure and depressurize the line. Ensure tube end is cut square, deburred, and fully seated into the fitting body before pressurizing. Thread engagement should follow standard NPTF hand-tight-plus-turns practice per applicable plumbing codes such as IPC.