1800 Sam - Pop-Up Spray Head - 1/2" FNPT - 0.5 GPM

• 4 in 1800 series pop-up spray head with Seal-A-Matic™ check valve
• Designed for use with all Rain Bird plastic spray head nozzles
• Traps water in lateral pipes in elevation changes of up to 14 feet (4,2 m)
• Reduces wear on system components by minimizing water hammer during start-up
• Prevents drainage from spray heads at lower elevations
• Stops water waste
• Ends landscape damage due to flooding and/or erosion
• 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
• Even stronger retract spring to accommodate elevation changes up to 14 feet (4,2 m) One of the strongest springs in the industry
• Co-molded, pressure-activated, multi-functional wiper seal assures positive seal without excess "flow-by" which enables more heads to be installed on the same valve