Tank Connector - 30mm hole, f2f 20mm OD pipe

thingiverse

A Tank Connector: The Ultimate Connection Solution This versatile piece of hardware fits snugly into a hole with a diameter of at least 30mm, providing a secure fit. With a female connection on each end, it's designed to accommodate 20mm OD piping - originally intended for use with 20mm OD PVC conduit. To ensure a watertight seal, gaskets are a must; you can either print custom gaskets using flexible filament or cut them from gasket sheeting. We recommend using a gasket with an outer diameter of 44mm and an inner diameter of 32mm for optimal performance. To take advantage of the Tank Connector's design, it's specifically engineered to eliminate the need for supports. This means you can print your connector without worrying about additional internal structures. For added strength, consider adding extra walls - I personally recommend at least four.