Step 4: Consult a nozzle catalog. Once the nozzle discharge has been determined, consult a nozzle catalog for a specific nozzle number or size. Using the nozzle type selected from the application guide (Table 7), review the specification of these nozzles in the discharge-capacity column. Several consecutive nozzles may meet your needs, but select a nozzle that operates at a low pressure and gives the desired droplet classification that allows a range for “fine-tuning.” Remember, most nozzles only perform well over a limited pressure range. Generally, the greater the operating pressure, the smaller the droplets. Smaller droplets increase drift potential. Conversely, larger orifices produce larger droplets.