Parker 59P-4 Compression Tube End Cap 1/4 in Pom

Product Description

The PARKER 59P-4 is a compression-style tube end cap designed to terminate a 1/4-inch OD tube line in fluid or pneumatic systems. Machined from acetal (POM), this fitting provides a leak-tight seal at the tube end without the need for threading or soldering. It is rated for working pressures up to 150 psi and a temperature range of 0 to 150 degrees F. The 59P-4 is a standard component used by plumbers, HVAC technicians, and pneumatic system installers who need a clean, reliable tube termination in tight spaces or panel-mounted assemblies.

This end cap suits residential and light commercial applications where 1/4-inch OD tubing is used in pneumatic controls, instrumentation lines, water purification systems, or low-pressure fluid distribution. The compression fitting design allows installation without specialized tools, making it appropriate for field service work or panel builds. It is sold individually with a minimum order quantity of 5 units.

Key Features

• Compression fitting design seals 1/4-inch OD tubing without threading or soldering
• Acetal (POM) construction offers chemical resistance and dimensional stability
• Rated to 150 psi maximum working pressure
• Temperature range of 0 to 150 degrees F suits a wide range of service environments
• Compact end-cap profile for use in space-constrained installations

Compatibility

Designed as an OEM-style compression end cap for systems using 1/4-inch OD tubing in pneumatic, instrumentation, or low-pressure fluid applications.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or instrumentation technicians. Depressurize and isolate the line before installing or removing any compression fitting. Hand-tighten the fitting body onto the tube, then snug with a wrench per standard compression fitting practice — do not overtighten acetal components. Verify the tube end is cut squarely and deburred before seating to ensure a proper seal.