Rain Bird 1804-SAM-PRS 4" Pop-up Sprinkler w/in Stem Pressure Regulator & Seal-A-Matic Valve

Product Information:The 1800 SAM Series is ideal for use in areas with changing elevations and offers all 1800 Series features. The spray head with a built in SealAMatic check valve prevents low head drainage and the In Stem Pressure Regulator is designed for areas with high and/or widely fluctuating water pressures. 3 to 18 feet with standard Rain Bird Spray Head Nozzles (MPR, VAN, USeries) 13 to 24 feet with Rain Bird Rotary Nozzles Features:#149; Patented PRS pressure regulator built into the stem#149; Builtin SealAMatic (SAM) check valve: Eliminates need for underthehead check valves#149; Ensures maximum spray head and nozzle performance, even with varying inlet pressures#149; Maintains constant outlet pressure at 30 psi (2,1 Bars); spray heads and nozzles perform best at 30 psi#149; Restricts water loss by up to 70 percent if nozzle is removed or damaged#149; No parts to be installed at the site: Saves time and money#149; Traps water in lateral pipes in elevation changes of up to 14 feet (4,2 m)#149; Reduces wear on system components by minimizing water hammer during startup#149; Prevents drainage from spray heads at lower elevations#149; Stops water waste#149; Ends landscape damage due to flooding and/or erosion#149; Ends misting and fogging caused by high pressure#149; SAM stamped on cap for easy identification and maintenance#149; Designed for use with all Rain Bird plastic spray head nozzles#149; "PRS" stamped on cap for easy identification and maintenance#149; Recommended for vandal prone areas#149; Designed for use with all Rain Bird plastic spray head nozzles Specifications:#149; Model: 1804SAMPRS#149; Product number: A44915Operating Range#149; Spacing: 3 to 24 feet (0,9 to 7,3 m)#149; Pressure: 25 to 70 psi (1,7 to 4,8 bar)Specifications#149; SAM Capability: Holds up to 14 feet (4,2 m) of head; 6 psi (0,4 bar)#149; Flowby: 0 at 8 psi (0,6 bar) or greater; 0.