Brass Union Inverted Flare Fitting Choose 3/8, 7/16, 1/2, 5/8 or an assortment consisting of all four sizes (3/16",1/4", 5/16", 3/8")
Choose your size from the drop down menu:
3/16" Line - 3/8"-24 Thread
1/4" Line - 7/16"-24 Thread
5/16" Line - 1/2"-20 Thread
3/8" Line - 5/8"- 18 Thread
Assortment (One of each size)