Cerrobrass 68A-4C Compression Tube Connector 1/4 Od X 3/8 Npt

Product Description

The CERROBRASS 68A-4C is a brass compression tube connector designed to join 1/4 inch OD tubing to a 3/8 NPT male threaded fitting. This straight connector uses a compression end on one side and a male NPT thread on the other, creating a secure, leak-resistant connection without soldering or flaring. It is rated for up to 400 psi working pressure and meets SAE standards, making it suitable for refrigeration, hydraulic, and fuel line applications. Plumbers, HVAC technicians, and fluid-system mechanics install this fitting where a tube-to-pipe transition is needed in tight or serviceable locations.

This connector is used in residential and light commercial applications involving copper or compatible metal tubing. Typical install scenarios include connecting refrigerant or fuel lines to threaded fittings on control valves, manifolds, or equipment ports. The 7/16-24 compression thread engages a standard ferrule and nut assembly. The rated temperature range spans -65 degrees F to 212 degrees F, allowing use across a broad range of operating environments including refrigeration and heating systems.

Key Features

• Brass construction for corrosion resistance and long service life in fluid systems
• Compression x MNPT end connections for tool-accessible, no-solder assembly
• 400 psi maximum working pressure rating
• SAE-compliant design for use in refrigeration, hydraulic, and fuel applications
• Wide temperature range: -65 degrees F to 212 degrees F
• Compact form factor at 0.07 pounds for use in confined spaces

Compatibility

Designed as an OEM-style replacement or service fitting for systems using 1/4 inch OD compression tubing with a 3/8 NPT male pipe thread transition point.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician familiar with compression fittings and pipe thread connections. Shut off and depressurize the system completely before disassembly or installation. Apply thread sealant or PTFE tape to the male NPT threads in accordance with applicable plumbing or refrigeration codes. Do not overtighten the compression nut, as this can deform the ferrule and cause leaks.