Color: Black Material: Plastic.
Full open they will cover a 10 to 12 inch circle.
Has a 1/4-inch barb thread connection, Suitable for 4mm/ 7mm(Inner/ Outer diameter) tube.
Great for watering potted plants, Able to Maintain constant when Long laying or pressure fluctuations, irrigation uniformity.
Rotation of the cap allows adjustment of flow and diameter of throw down to a complete shut-off via a ratchet mechanism on the cap and a notch on the base.