What do I use to run the drip line for the condensation T? Consult with local codes. 3/8″ (1/2″ on DVC) high temperature silicon rubber tubing is recommended. Updated on April 19, 2021 Tagged: general Was this article helpful? Yes No Related Articles Returns and Claims Will Call Instructions Parts Order & Support Overview Parts Ordering : PROCard Members Upgraded Isolation Valves (2021) What does the flow meter alarm set button do? What does 990 mean?