Parker 369PTCSP-8-4 Push-to-connect Plug 1/2x1/4 in 250psi

Product Description

The PARKER 369PTCSP-8-4 is a push-to-connect tube plug fitting designed to seal off open tubing ends quickly and without tools. It accepts tubing with a 1/2 inch and 1/4 inch outside diameter and holds a maximum working pressure of 250 psi. The fitting body is constructed from brass with Buna-N seals and a nylon release collar, giving it reliable resistance to common hydraulic and pneumatic media. HVAC technicians, plumbers, and pneumatic system installers use this type of plug when capping unused ports or isolating a line segment during service or system reconfiguration.

This fitting is suited for use in low-to-medium pressure pneumatic and fluid systems found in residential and light commercial HVAC equipment, compressed air lines, and plumbing assemblies. Its push-to-connect design allows a technician to cap a line in seconds, making it practical for service calls where speed and leak-free sealing are both priorities. The combination of brass body and Buna-N seals supports compatibility with a broad range of gases and liquids commonly encountered in trade applications.

Key Features

• Push-to-connect design — no tools or additional fittings required for installation or removal
• Maximum working pressure of 250 psi for pneumatic and fluid service
• Brass body construction for durability and corrosion resistance
• Buna-N seals provide reliable media compatibility with common refrigerants, air, and light oils
• Nylon release collar for quick, clean tube release during reconfiguration
• Compact profile: 1.57 inches height, 1.12 inches length, 0.91 inches width

Compatibility

Designed as an OEM-style push-to-connect plug for tubing with a 1/2 inch and 1/4 inch outside diameter in pneumatic, HVAC, and plumbing system applications rated up to 250 psi.

Installation Notes

Installation is performed by a licensed plumber, HVAC technician, or qualified pneumatic systems technician. Before installing or removing the fitting, depressurize and isolate the line completely. Confirm the tubing outside diameter matches the fitting spec before inserting — forcing mismatched tubing can damage the internal collet and compromise the seal. To release the tube, depress the collet ring evenly while pulling the tubing straight out.