The SQ Series is the most precise and efficient, low-volume spray solution for irrigation of small areas with dense plantings. The SQ Series' square spray pattern and pressure compensation offers increased efficiency and control, reducing overspray, property damage and liability. Unique edge-to-edge capability reduces the number of nozzles needed, which decreases cost and dramatically reduces installation time. Simplify design and installation with the flexibility of applications: one nozzle throws 2.5' or 4' (0.8m or 1.2 m) and can be used on a variety of spray heads and risers. It even meets micro irrigation system requirement for less than 26 gph flow rate at 30 psi.

Link to Info From Rain Bird