• 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

Additional features:

• 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 a positive seal without excess “flow-by” which enables more heads to be installed on the same valve.
• All sprinkler components are removable from the top without special tools, providing for quick and easy flushing and
• maintenance of the sprinkler.
• Constructed of time-proven UV-resistant plastic and corrosion-resistant stainless steel parts, assuring long product life.
• “SAM” is stamped on the cap for easy identification and maintenance.