This part is a Complete Jet Internal, Pentair, Cyclone Micro, 3" face diamater, Directional, Smooth, Gray...Installation TypeTwist LockFace Diameter3"Jet Part TypeInternalDiffuser Opening Type2Nozzle Diameter9/16"Base Diameter1-5/8"Total Length3-9/16"Diffuser Length2-15/16" ManufacturerPentair/BalboaModelCyclone MicroColorGrayInternal TypeDirectionalFace StyleSmoothSpecial FeatureAdjustable On/Off Control, Tapered Neck