Parker PT-00305 Compression Tube Plug 1/4-19 Steel 5 Pack

Product Description

The PARKER PT-00305 is a steel compression tube plug designed to seal open tube ends in compressed air, hydraulic, and fluid transfer lines. It threads into compression fittings or tube ports using a 1/4-19 inch thread and provides a positive, leak-resistant closure without requiring additional sealant. This plug is a standard service item used by HVAC technicians, plumbers, and fluid system mechanics when capping unused ports, isolating system sections, or protecting open lines during installation or maintenance. Each order ships in a pack of five, making it practical for service vans and shop stock.

This plug is suited for residential and light commercial applications where compression-style fittings are used in refrigerant lines, pneumatic circuits, hydraulic systems, and plumbing assemblies. It is commonly installed when temporarily or permanently decommissioning a branch line or when blanking off unused tee or manifold ports. The steel construction handles the mechanical load of threaded installation and resists deformation under moderate system pressures.

Key Features

• Steel construction provides durability and thread integrity under torque
• 1/4-19 inch thread size fits standard compression fitting ports
• Plug design seals open tube ends without additional fittings or adapters
• Sold in a pack of five for convenient service stock
• Compact form factor suits tight-clearance installations

Compatibility

Designed as an OEM-style replacement and service component for compression fitting systems using 1/4-19 inch threaded ports across HVAC, plumbing, and fluid transfer applications.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or qualified fluid system mechanics. Always depressurize and isolate the system before removing or installing any compression fitting plug. Thread engagement should be hand-started to avoid cross-threading, then tightened with the appropriate open-end or adjustable wrench. Follow applicable IPC or system-specific codes when sealing pressurized lines.