Bykski pc water cooling fitting 3/8" G1/4" soft tube water plug Hand Twist water cooler heatsink gadget B-FS3J
https://www.vogueparade.com/shopping/EN/200001076/3/1005001944445741/bykski-pc-water-cooling-fitting-38-g14-soft-tube-water-plug-hand-twist-water-cooler-heatsink-gadget-b-fs3j//