Product Information:Rotary Nozzles deliver gentle, visually appealing streams of water at a lower rate allowing the water and nutrients to penetrate the soil, which helps you maintain a healthy landscape. Ideal for slopes and hillsides, Rotary Nozzles" highlyefficient water delivery reduces soil erosion and runoff, saving water and money. Rotary Nozzles are the perfect solution if you experience low water pressure. They are designed to operate at lower pressure while still delivering precise, even coverage.Product Videos: Features:#149; Full Circle#149; Low precipitation rate 0.60 in/hr (15,2 mm/hr) reduces runoff and erosion#149; Multiple, rotating streams uniformly distribute water throughout the radius range#149; Matched precipitation rate across radii and pattern simplify the design process#149; Matched precipitation rate with Rain Bird 5000/5000 Plus MPR Rotor Nozzles allow MPR irrigation designs from 13" to 35"#149; With approximately 60 less flow than conventional spray nozzles, Rotary Nozzles allow more heads per zone, reducing overall system complexity and cost#149; Maintains highly efficient performance throughout the 2055 psi pressure range, with no misting or fogging at high pressures#149; Stainless steel radius reduction screw allows reduction down to 13" on the R1318 and to 17" on the R1724 to accommodate varying landscape needs#149; Designed for use on Rain Bird spray heads Specifications:#149; Model: R1318F#149; Product number: A84545#149; Operating Range#149; Pressure range: 2055 psi (1,4 to 3,8 bars)#149; Spacing: 13" to 24" (4,0 m to 7,3 m)