The Senninger NZIN20 #20 Dark Turquoise Wobbler® Nozzle is a 5/16" orifice component designed to be used with a compatible Wobbler™ base. This nozzle offers coverage of up to 20.18 gallons per minute at 50 PSI. Thoughtful design ensures it's easy to change out when you need to replace, upgrade, or simply swap sprinkler nozzles.