parametric hvac square 4in duct tap

Installing ductwork in our house and I decided to try some abs duct taps. Hopefully I wont be tearing out sheet rock in a few years. lol This is sized for a 4 in 1/2 bath duct but can be scaled if you need a larger one and either have a large print bed or dont mind solvent welding. I made the base large for max airflow.