DIG Foggers with a ¼ in. barb operate at a minimum pressure of 30 PSI to produce micro-sized droplets in a small diameter area when mounted above the plant. Higher incoming pressure results in smaller and finer droplet size. The 0.8 GPH fogger's vortex design spins the water flow into a fine mist, useful where overhead misting or cooling is desired, or for plants that require constant moisture. DIG Foggers are ideal for use in pots, hanging baskets, and planters as well as hanging above for cooling effect. A ¼ in. barbed inlet allows for a quick and easy connection to any 1/4 in. micro tubing. Color: Blacks.