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