

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The PARKER 4-2 GBZ-SS is a stainless steel compression tube connector designed to join tubing to a female NPT threaded port in fluid and gas distribution systems. It features a 1/8-inch thread size with a compression-to-FNPT end connection configuration, allowing a secure mechanical seal without welding or soldering. Rated to a maximum working pressure of 10,300 psi, this fitting is built for high-pressure instrumentation, pneumatic, and hydraulic lines. Its stainless steel construction provides corrosion resistance in demanding environments. Plumbers, pipefitters, and instrumentation technicians are the primary installers of this type of fitting.
This compression tube connector is suited for residential, commercial, and industrial applications where a reliable, leak-free connection between tubing and a female NPT port is required. Typical install scenarios include instrumentation panels, process control lines, pneumatic control systems, and high-pressure fluid handling assemblies. The compression end accepts tubing directly, making field assembly straightforward without the need for specialized tooling beyond a standard wrench.
Designed as an OEM-style replacement or direct-fit compression connector for systems using 1/8-inch FNPT threaded ports with compression tube connections in high-pressure fluid and gas service.
Installation should be performed by a licensed plumber, pipefitter, or qualified instrumentation technician familiar with compression fitting assembly. Shut off system pressure and depressurize the line completely before removing or installing any fitting. Hand-tighten the compression nut first, then use a wrench to complete the final turns per standard compression fitting practice — do not overtighten. Verify the installation meets applicable codes such as the IPC or relevant instrumentation standards before returning the system to service.
Thanks for subscribing!
This email has been registered!