QC-S5 JB Industries 5/16" Female Quick Connect x 1/4" SAE Male Access Quick Coupler - Each. Patented O-ring seal for deep vacuum. This 5/16" X 1/4" male adapter is designed to give the end user the ability to connect their standard refrigeration hoses to 5/16" (1/2" UNF) fittings being used on most R-410A mini-split systems.
Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov