Updated on December 6, 2025: According to the suggestions from netizens, we have added a print configuration with a bottom circular ring

Updated on May 31, 2025: Increase the bottom thickness and the strength of the bottom connection

The length of the plug is 3.8cm, and the sealing performance is quite good. There is a 1cm space for consumables inside. The inside of the plug is designed to be thicker at the top and thinner at the bottom, which can accommodate both thick and thin Teflon tubes