Ideal for use in areas with changing elevations, the 1800 SAM Series offers all 1800 Series features plus:

• Built-in Seal-A-Matic™ (SAM) check valve. Eliminates the need for under-the-head check valves. No parts to be installed at the site

• Stronger retract spring to accommodate elevation changes up to 14’ (4.2 m). One of the strongest springs in the industry

• Prevents drainage from spray heads at lower elevations. Stops water waste. Ends landscape damage due to flooding and/ or erosion

• Helps retain water in lateral pipes which reduces wear on system components by minimizing water hammer during start-up

• Designed for use with all Rain Bird plastic spray head nozzles