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The VALUE COLLECTION 16970 is a male compression tube adapter designed for joining or transitioning tubing runs in fluid-handling systems. Constructed from steel, this fitting features an 11/16-16 thread on one end and a 3/8-18 thread on the other, allowing techs to connect lines of differing thread sizes without fabricating a custom solution. Compression-style fittings like this are a standard choice where a reliable, tool-assisted seal is needed and permanent brazing or welding is not practical. This adapter is sold in a pack of five units, making it practical for service vehicles or shop stock.
This fitting is used in plumbing, hydraulic, and pneumatic tubing applications where two differently threaded male-connection lines must be joined. It is appropriate for residential and light commercial service work. Installers working on refrigeration lines, fuel systems, or general fluid transfer lines will encounter thread combinations that require a step-down or step-up adapter of this type. The steel construction makes it suitable for moderate-pressure applications common in trade service work.
Designed as an OEM-style replacement or service fitting for tubing systems requiring a male compression adapter with 11/16-16 and 3/8-18 thread ends in steel construction.
Installation should be performed by a licensed plumber, HVAC technician, or qualified mechanic familiar with compression fitting procedures. Always depressurize and drain the line before removing or installing any fitting. Use appropriate wrenches to seat the fitting to the manufacturer-recommended engagement without over-torquing the steel threads. Verify thread compatibility and check for leaks after pressurizing the system.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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