Description Brass Mist Nozzles: Made of brass material, anti-rust and mist effectively. Mister tee connector is made of sturdy recyclable plastic material – good sealing and leakproof Misting Cooling Effectively: Misting range: 20-40 inch, cools the surrounding air temperatures up to 20 degrees Wide Application: Necessary accessories to make misting cooling system, fan misting system, plant watering system, mist irrigation system, greenhouse mister system Easy to Install: Instruction is included. Just need 2 steps in 3 seconds to set up the mister nozzles. NOTE: Recommended to fully and firmly insert the tubing into the tee connector to prevent leaking Suitable for 1/4″ Tubing: US standard size, adapted to 1/4 inch PE PU tubing