

Ships same day if ordered by 12 pm
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 8-6 GBZ-B is a brass compression tube connector designed to join tubing to female National Pipe Thread (FNPT) fittings in fluid and gas distribution systems. It features a compression end on one side and an FNPT end on the other, allowing a secure, leak-resistant connection without soldering or welding. Rated to a maximum working pressure of 2200 psi, this connector suits high-pressure applications common in hydraulic, pneumatic, refrigeration, and instrumentation lines. Plumbers, pipefitters, and HVAC technicians regularly specify brass compression fittings for their corrosion resistance and reliable sealing performance in both liquid and gas service.
This connector is suited for use in residential and commercial plumbing, HVAC refrigerant lines, compressed air systems, and instrumentation tubing runs where a transition between compression tubing and a female pipe thread port is required. Its brass construction makes it compatible with copper and compatible soft-metal tubing in moderate-temperature service environments. The single-piece connector simplifies installation in tight spaces where a union or separate adapter would add complexity.
Designed as an OEM-style compression-to-FNPT connector for use in plumbing, HVAC, pneumatic, and instrumentation systems requiring a 3/8 inch female pipe thread port connection with compression tubing. Cross-reference Swagelok part number B-810-7-6 for specification verification.
Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician. Shut off and depressurize the system fully before removing or installing any compression fitting. Use appropriate tubing cutters to ensure a clean, square tube end before seating it in the compression body, and apply thread sealant or PTFE tape to the FNPT threads in accordance with applicable plumbing codes such as the IPC or IFGC. Do not overtighten the compression nut, as brass fittings can deform and leak if excessive force is applied.
Thanks for subscribing!
This email has been registered!