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