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