Specification Brand : Rain Bird BulletPoint1 : 18 Foot Variable Arc Nozzle BulletPoint2 : Easy arc adjustment from 0 to 360 degrees BulletPoint3 : A physical left edge indicator makes it easier to feel the fixed left edge. BulletPoint4 : Fits all Rain Bird Type Spray Heads and Shrub Adaptors BulletPoint5 : Stainless steel adjustment screw to adjust flow and radius. Color : With Two Camlocks CustomerPackageType : Standard Packaging ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 753810007683 ExternallyAssignedProductIdentifier2 : 0753810007683 GpsrSafetyAttestation : 1 ItemDisplayWeight : 0.35 pounds ItemName : Rain Bird 18VAN Variable Arc Adjustable Sprinkler Nozzle w/Screen, 14 to 18 Foot Radius - 25 Pack ItemPackageDimensions_Height : 3.81 centimeters ItemPackageDimensions_Length : 16.002 centimeters ItemPackageDimensions_Width : 12.192 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : watering-nozzles Manufacturer : Rain Bird Material : Metal Material1 : Aluminum Material2 : Brass MaximumOperatingPressure : 100 pounds_per_square_inch ModelName : H-0445 ModelNumber : Van 18 NumberOfItems : 1 NumberOfPorts : 1 NumberOfSettings : 1 PartNumber : US418MX ProductDescription : Product Information:Adjustable 14 to 18 feet nozzles for all standard and irregularshaped turf and shrub areas. Fits all Rain Bird spray heads and shrub adaptors.Selecting the correct nozzle is one of the most crucial, yet overlooked, elements in irrigation system design. Choosing the correct nozzle, whether it's for a spray head or a rotor, is easy if you take the time to study the nozzle charts in a manufacturer's product or online catalog and select one that best suits your needs; irrigation equipment manufacturers have put a tremendous amount of effort into developing nozzles to fit almost every application: For slopes and compacted soils, select a nozzle with a lower precipitation rate. For windy areas, select a nozzle with a low nozzle outlet trajectory. To achieve even water distribution without having to separate partcircle from fullcircle sprinklers, select a nozzle set that features a matched precipitation rate. Another way to ensure uniform watering, if you're working with spray heads, is to select nozzles that have an undercut nozzle. These nozzles have an second, undercut orifice for watering closer to the head. For flexibility with spray heads, select a nozzle with an adjustable or variable arc. Because nozzles are designed to work within a wide range of pressures, it is important to ensure you have the correct pressure at the base of the nozzle.Too much pressure, as is commonly the situation with spray heads, will result in misting. Misting creates a reduction in the radius of throw and you may experience uneven coverage, and cause wet and dry spots. To correct this, several manufacturers offer devices that can be installed at the nozzle or are integrated in the sprinkler, such as the Rain Bird PRS Series.If you're working primarily with rotors, keep in mind that too much pressure can cause the rotor to rotate too quickly. The nozzle stream of a fast moving rotor will "horsetail" and cause a severe reduction in the radius of coverage. ProductSiteLaunchDate : 2007-06-23T16:19:27.000-00:00 Size : 6.0 SpecificationMet : ASME, ANSI, UL, NSF Style : Misting SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40141700 ValveType : Needle Valve