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