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