Drip Irrigation Ring to water your plants. The opening fits a 1/4in barb cut in half. Link below for where to purchase. It should be a pressure fit without glue needed. The flowrate I got from it was around 6-7gph. I would test and adjust watering schedule as needed.

[https://www.dripdepot.com/barb-tubing-coupling-size-quarter-inch](https://www.dripdepot.com/barb-tubing-coupling-size-quarter-inch)