The Flowline™ FLV Series continuous slot diffuser is designed for. FlowLine is a custom architectural linear slot diffuser system designed to integrate supply and return air openings into interior commercial buildings. © Advanced Air (UK). FBMC. Flow Cross for Flowbar Diffusers. Clear. Stocked Sizes. FlowLine is a custom architectural linear slot diffuser system designed to integrate supply and return air openings into interior commercial buildings. The Flowline™ FLV Series continuous slot diffuser is designed for both ceiling and high sidewall applications and provides total air pattern control flexibility. Nailor Linear Diffusers and Bar Grilles are engineered and designed to satisfy high performance applications that require an aesthetically pleasing design. . Architectural Slot. Categories: Air Distribution, Linear Diffusers SKU. Flowline High Capacity Linear Slot Diffuser · Model 35SST VAV · External Louvre A member of the Nailor Industries International group. Call Now To Order. Flowline™ diffuser assuring proper dimensional layouts for simple diffuser installation. Mitered Corner for Flowbar Diffusers. Nailor Linear Diffusers and Bar Grilles are engineered and designed to satisfy high performance applications that require an aesthetically pleasing design. Choose an option, 96" Long x 1 1" slot. FL-TZ. FBP Architectural Linear Diffuser, Aluminum, 1" Slot. Flowline Diffuser Vertical.