Specialty 3/8" to 1/4" reducing Tee. It has great uses when designing larger systems with a 3/8" backbone. Two ports fit 3/8" tubing and middle port fits 1/4" tubing.
Hands down Mist King is the best mister available. I set the system up in minutes, easy to set the timer, virtually silent and a ultra-fine mist. My dart frogs love the Mist King, my plants love the Mist King and I love my Mist King!