In the world of piping, if elbows are the dancers who change direction, then tees are the hubs that enable flow diversion and merging. They play an irreplaceable role when branch lines are drawn from the main pipeline. They typically have three openings—think of as “one in, two out” or “two in, one out.” This unique structure makes tees a crucial “crossroads” in fluid transportation ... https://www.furdfittings.com/t-connection-in-piping-system-the-secret-of-tee-pipe-fitting/