Rain Bird 1800 Pressure Regulator & Seal-A-Matic Series
Rain Bird 1800 Pressure Regulator & Seal-A-Matic Series The Rain Bird 1800 Pressure Regulator and Seal-A-Matic Series boasts superior components and first rate design features making this the spray head of choice for a variety of applications. This series also features a built-in patented pressure regulator which compensates for high or fluctuating water pressure to ensure maximum performance and a built in Seal-A-Matic check valve which prevents low head drainage making this series ideal in at any elevation.