The diffuser is connected to the ductwork using a plenum with mineral wool as sound attenuation material. Master suite, air-conditoning hidden above the ceiling. Este produto é oferecido sob a forma de família Revit (. And our current diffusion pipeline can be regarded as clip_skip = 1, which. Hidden linear diffusers. The diffuser is available with 1 to 4 slots in a 1 or 2 way pattern. Cd. This model of linear slot diffuser comes with the option of removable deflection blades. We have recruited a team of experienced craftsmen with proven. Texas Buildmart offers High Quality Linear Slot Diffusers. Incorporates side plenum box with manual control damper accessible from room. Este produto é oferecido sob a forma de família Revit (. Standart 18mm - 3/4 in. Plenum Slot and Light Troffer Diffusers Nailor Plenum Slot and Light Troffer Diffusers are designed for an extremely unobtrusive method of air distribution for use in suspended ceiling grid. The diffuser is available with 1 to 4 slots in a 1 or 2 way pattern. Each diffuser has an adjustable blade to discharge air horizontally and vertically with multiple combinations possible. Local and individual controls for optimum comfort. ADJUSTABLE LINEAR DIFFUSERS LT350. $39. Linear slot (25 mm) diffuser, with concealed frame. Hidden linear diffusers with 20 mm or 30 mm single slot with aerodynamic aluminium profile and adjustable deflectors for optimised air throw control. They can be mounted in false ceilings hiding the frame with filler and leaving visible only the slot. 2. Home. . Long-throw nozzles. From standard grilles and registers, to its architectural line of Formations® linear slot diffusers, along with a newly released series of displacement diffusers, METALAIRE has the air devices to meet every need. The vector stencils library "HVAC ductwork" contains 55 duct and vent symbols of HVAC mechanical components. 27. Rectangular Ceiling Diffuser – ACD4R+D. . Clean, space-saving diffusers and grilles. rvt) e appartiene alla categoria MEP. 5 bath • 4,400 sqft co op $12,495,000 • MLS# OLRS-1434898Scarica l'oggetto BIM Look - Diffusori lineari a scomparsa di Madel gratuitamente. Diffusers can be as a shape of round, rectangular, or can be as linear slot diffusers. Titus FlowBar architectural linear diffuser system maximizes engineering performance without sacrificing aesthetic considerations for the designer. 6 reviews. Download. They allow. -EDLS10-FB - EDLSB10-FB hidden linear diffusers without deflectors (return) 30 mm slot. They allow the formation of diffuser continuous lines, with active and inactive areas, without breaking the uniformity of the whole. Selectable slots: Width 15 Width 20 Width 30 Manufactured in extruded aluminum. md","contentType":"file. Then attach the F Clip and XG-AFL Linear Diffuser to the underside of the framing with screws or nails by others (see Figure 6). This framing must be suitable to hold the weight of the diffuser (typically wood framing). ZEG . Hidden linear slot diffuser BF. You will receive updates on all SagiCofim news. Wall or false ceiling mounting hiding the frame with filler and leaving visible only the slot. BUILDMART - 18" Linear Slot Diffuser - (1 Slot) Single Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart. Laden Sie das BIM-Objekt Look - Verdeckte Schlitzauslässe LOOK von Madel kostenlos herunter. DF-LIT-E 3. SD-223: Supply slot diffuser with damper and deflector bladesDescription. clip skip is a trick to feed the early-stopped features encoded by CLIPTextModel into the cross-attention. rvt)angeboten und gehört zur Kategorie HVAC Diffusor. Hidden linear slot diffuser DF-LIT-E 3. 00. 0, for installation in suspended drywall ceilings or suspended ceiling grids and vertical walls. Unit #27Orlando-FL. FL-TZ. Controls integrate seamlessly with a T3SQ and T3SW electronic VAV system. 0 index LINEAR SLOT DIFFUSERS ISO 9001 CERTIFIED COMPANY Cover Page Photo Seef Mall Food Court, Bahrain. 116 Grindle Road Rocklea QLD, 4106 t: 07 3102 1212The LOOK hidden linear diffusers are designed to combine the aesthetics with the technical performance. rfa/. Min. It is an excellent choice for single slot, high performance interior applications. . Price TBD7 series diffusers are a louvered, fixed pattern diffuser that provides high air capacity with a tight horizontal ceiling air pattern and low sound. Download the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. The modules are available with a 20mm or 25mm. Ocean Ave 12. Features. linear metal home. Dit product wordt aangeboden als Revit-familie (. 6 17 7. Este produto é oferecido sob a forma de família Revit (. 7 Pages. Features. rvt) e pertence à categoria Difusores AVAC. The vector stencils library Registers, drills and diffusers contains 47 symbols of rectangular, circular, linear and troffer air handling inlet/ outlet components. DRY. ADELAIDE. AIR DIFFUSERS AIR JETS GRILLES ACCESSORIES FOR AIRJETS AND GRILLES DAMPERS. Th. rvt)angeboten und gehört zur Kategorie HVAC Diffusor. 10x4" Linear Slot Diffuser Matte White - CASA Series HVAC Modern Air Vent Cover (WASD25-2) $30. HIDDEN LINEAR SLOT DIFFUSER DOWNLOAD PRODUCT SPECIFICATIONS Overview The SD223 linear slot diffuser are designed for ceiling application where the frame is. Linear Aluminum Diffusers The expansion and contraction of aluminum linear diffusers, due to temperature differential, is shown below. Figure 11. rvt) en behoort tot de categorie HVAC-kanalen. Individually control part of a zone to maximize comfort in challenging sub-spaces;Architectural Linear Diffuser, Aluminum, 1" Slot. Its directional fin allows air flow to be adjusted from 0º to 180º. They can be mounted in false ceilings hiding the frame with filler and leaving visible only the slot. This product is supplied in Revit (. SD123-Linear Slot Diffusers. $39. 07 CAD. PS8 fits naturally into the ceiling and maintains the excellent technical properties of swirl diffusers. rfa/. Series AR-200 Non-return or positive pressure dampers. 00 - $30. Este produto é oferecido sob a forma de família Revit (. Adjustable Dual Pattern Controllers Horizontal High Throw Series:Shop Diffusers Exclusive Collections From Home Centre UAE Online Shopping for Furniture Brands, Bedroom, Sofas, Chairs, Desks, Kitchenware, Home Fragrance Fast Delivery in Dubai, Abu Dhabi Free Returns Cash On Delivery. Experience the Ultimate in Comfort and Convenience With Our Innovative Hidden Slot Diffusers 𝗖𝗼𝗻𝘁𝗮𝗰𝘁 𝘂𝘀: 📞+971 501929869…Download the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. The inner deflector, with a curved wing profile, has an adjustable inclination from the diffuser front, to set the desired jet direction. 5 (15) Download. Product Specification: Material : Plastic. Materiale: alluminium. This product is supplied in Revit (. Descarga el objeto BIM Look - Difusores lineales ocultos de Madel de forma gratuita. rfa/. The vector stencils library "Registers, drills and diffusers" contains 47 shapes of rectangular, circular, linear and troffer air handling inlet/outlet components, registers, drills and diffusers. rvt) e pertence à categoria Difusores AVAC. Wall or false ceiling mounting hiding the frame with filler and leaving visible only the slot. Havalandırma Çözümleri / Yer Tipi Konvektör, VAV, CAVThis post is designed to showcase the core API of diffusers, which is divided into three components:. I diffusori a scomparsa serie LG a singola feritoia, garantiscono un flusso d’aria ottimale e stabile, combinando il fattore di integrazione architettonica con le. Nailor plenum designs. (Frame/border style CCC only). 15 Return linear slot diffuser - 16 mm: ARLD-16 Tab. Placement of anti-crack tape on the frame and subsequent plaster skimming. They allow the formation of diffuser continuous lines, with active and inactive areas, without breaking the uniformity of the whole. They can be mounted in false ceilings hiding the frame with filler and leaving visible only the slot. Linear slit diffusers for hidden installation | Decorative hidden air diffusers (110) $ 60. LOOK hidden linear diffusers MADEL The LOOK hidden linear diffusers are designed to combine the aesthetics with the technical performance. Este produto é oferecido sob a forma de família Revit (. Mud-in (Hidden Flange) 57575 21: $298. , offering a complete line of air distribution and air terminal products. 7. Plenums are manufactured to suit the full range of linear diffusers from 1 to 8 slots. SD-223: Supply slot diffuser with damper and deflector blades Slot diffusers with 50 mm diffuser face (nominal width) and adjustable air control elements. Finishing: EDLS: painted black Ral 9005 Finishing: EDLSB: painted white Ral 9016Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. VAIRTECH plastic linear slot diffusers can be used by scrolling the blades at both ends, to adjust the air direction and the volume, for multidirectional air supply. rvt) y pertenece a la categoría MEP. Linear slot diffusers. 40. Min Order: 100 pieces. rfa/. Links. "TRUFIG provides a design solution, enabling me to seamlessly incorporate. 1 Slot 2" Standard Mud-in (Hidden Flange) 57578 -7: $179. Before installing drywall, an adequate frame must be constructed for the Greenheck XG-6600 Linear Slot Diffuser. DUC. Min. Listed on Oct 4, 2023Download the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. rfa/. Custom designed by Stofft Cooney architects and masterfully crafted by Kurtz homes this 5 bedroom + den waterfront gem was well ahead. First attach the F Clip to the XG-AFL Linear Slot Diffuser (see Figure 5) with equal spacing between clips. Finishing: EDLS: painted black Ral 9005 Finishing: EDLSB: painted white Ral 9016Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. Titus FlowBar architectural linear diffuser system maximizes engineering performance without sacrificing aesthetic considerations for the designer. Officine Volta Hidden linear single slot diffuser BF. The AC unit distributes air throughout the home/building via the air duct tubing and delivers hot/cold air to each room that the vent is in, through the face of the vent, which is the Air Vent Cover or Linear Slot DiffuserFind your wall-mounted air diffuser easily amongst the 66 products from the leading brands (Kampmann, SCHAKO,. Dieses Produkt wird in Form von Revit-Familie (. Architectural Linear Formations satisfy the most demanding engineering and architectural criteria, providing both superior air distribution performance and sculptured elegance. DRY . Adjustable blade to modify the air direction. Linear diffuser DF-LIT-E Selection Table DF-LIT-E Q Vk Effective supply velocity in m/s X Throw for a maximum velocity of 0. 1 Supply Linear Slot Diffuser - 25mm: ASLD-25 Tab. The more common ones are 3-slot and 2-slot. Characterised by its lack of visible profiles, by being virtually imperceptible and its suitability for flush mounting while providing a Description. Easy to Replace Modern Air Vent Covers and Linear Air Slot Diffusers bring the commercial look straight to your home or business with over 70 Standard Sizes! Supply and installation of curved linear diffuser with short frame and deflector fin of the LOOK-CURVED-AR (L) R9005M dim. [email protected]. rfa/. 1804 N. They can be mounted in false ceilings hiding the frame with filler and leaving visible only the slot. This product is supplied in Revit (. 40 . Linear Slot Diffuser – Horizontal Projection with Ceiling Effect. These linear slot diffusers feature fully adjustable, aerodynamic pattern controllers fabricated from extruded aluminum, and are available in a large selection of frame styles. rfa/. rvt) y pertenece a la categoría MEP. Characterised by the lack of profile on show. 2. Download the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. Ships from Ukraine. The linear diffusers of the BF. Description. 3. Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. MLS #2913186. bf-dry. VAV Diffusers; Accessories; LGO Fan Coils; FTW Fan Coils; Blower Coils; Air Handlers; Engineering. Télécharger . Green Building Benefits & Energy Efficiency. Download the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. 0. rvt)angeboten und gehört zur Kategorie HVAC Diffusor. -EDLS40-FA - EDLSB40-FA hidden linear diffusers with deflectors and sliding damper (supply) 20 mm slot. Model DLO-PL. Learn more. The vector stencils library "Registers, drills and diffusers" contains 47 shapes of rectangular, circular, linear and troffer air handling inlet/outlet components, registers, drills and diffusers. Gebze Plastikciler OSB, 9. Este produto é oferecido sob a forma de família Revit (. The ControlNet model was introduced in Adding Conditional Control to Text-to-Image Diffusion Models by Lvmin Zhang and Maneesh Agrawala. Linear Slot Diffuser (Most Beautiful) Linear slot diffusers include 4-slot linear diffusers, 3-slot linear diffusers, 2-slot linear diffusers and other numbers of slots depending on the manufacturer or upon request. Download free BIM objects from Officine Volta. HSLD / HRLD OPTION 2 *The active length correction table can be used to determine the throw at different active length. 00. Klima Contra. Noise Criteria [NC] values based on 10 dB room absorption, re 10-12 watts. {"payload":{"allShortcutsEnabled":false,"fileTree":{"src/diffusers/models":{"items":[{"name":"README. rvt)angeboten und gehört zur Kategorie HVAC Diffusor. 2 yrs CN Supplier . Architectural Slot Diffuser for TechZone Systems. HIDE linear diffuser Description HIDE linear slot diffuser, air flow 21 mm, with no outer frames, thus offering excellent aesthetics. They take up less space and can be used on ceilings or walls. hidden_states (torch. Available for SOLIDWORKS, Inventor, Creo, CATIA, Solid Edge, autoCAD, Revit and many more CAD software but. 6 /5 · 1 reviews. I diffusori a scomparsa serie LG a singola feritoia, garantiscono un flusso d’aria ottimale e stabile, combinando il fattore di integrazione architettonica con le prestazioni tecniche; sono costruiti in acciaio verniciato nero RAL 9005, mentre il plenum è in lamiera zincata. Circular Displacement Unit $ 34. 2 Slot - Double Slot - 3/4" Slot Width. 0 /5 · 0 reviews ·. square ceiling diffuser primarily for lay-in T-Bar applications. Download het BIM-object LOOK (Hidden linear diffusers) van Madel gratis. Swirl DiffusersPrice TBD7 series diffusers are a louvered, fixed pattern diffuser that provides high air capacity with a tight horizontal ceiling air pattern and low sound. rvt) family format(s) and is included in the HVAC Diffusers category. Este producto se ofrece en forma de familia Revit (. Виберіть один із об’єктів BIM для SketchUp, Autodesk, Revit, Vectorworks або ArchiCAD. Linear Slot Diffusers - 100% Aluminum with weather stripping to prevent ceiling smudges. Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. 40. rfa/. After installation, the frame part remains in the ceiling and a black thin slit image is obtained. They allow the formation of diffuser continuous lines, with active and inactive areas, without breaking the uniformity of the whole. rvt) e pertence à categoria Difusores AVAC. The removable linear slot diffuser is mounted into the plenum with invisible screws. The frame's knurled surface is designed to fit properly under the plasterboard skim. rvt)angeboten und gehört zur Kategorie HVAC Diffusor. 00. All joints are welded and sealed for air tight functioning which adds to maintain rigidity. rvt) en behoort tot de categorie HVAC-kanalen. Adjacent to the living room is the formal dining room, a marvelous space for hosting both large and intimate gatherings alike, and which features a recessed oval ceiling with cove lighting and hidden linear diffusers. The integral volume damper has a mill finish and is. Officine Volta Hidden linear diffuser BF. See more ideas about ceiling design, diffuser, ceiling vents. BUILDMART - 18" Linear Slot Diffuser - (1 Slot) Single Slot - White Decorative Air Vent - Modern AC Vent Cover for Ceiling, Walls & Floors - Texas Buildmart. 20 Plenum slot diffuser - 19mm: ASMPD 22 INDEX 7. UNet. CRUZ-DF-LIT-E. rfa/. Linear diffusers can be used as an “air curtain” next to doors, large windows and entrances. 3. SD223- HIDDEN TYPE CEILING LINEAR SLOT DIFFUSERS DESCRIPTION: It is designed to be used in ceiling applications where traditional slot diffusers border profiles. It can be used for supply or return air and available in one up to eight slots. Hidden Concealed type is also available. 2 reviews. This property is currently available for sale and was listed by StreetEasy on Jul 20, 2023. Please see the Technical Sheet for other models. After installation, the frame part remains in the ceiling and a black thin slit image is obtained. rvt)angeboten und gehört zur Kategorie HVAC Diffusor. EVTT In line fans circular duct for pressure up to 200 Pa. Klimacontra Hidden Slot Diffuser (Hidden Frame) is designed for ceiling applications. 15 Return linear slot diffuser - 16 mm: ARLD-16 Tab. Dieses Produkt wird in Form von Revit-Familie (. 25 m/s at the occupied zone AT = 0 °C, installed at a height of 3m Pt Total pressure drop, in Pa dB(A) Sound power level in dB(A)LOOK Hidden linear diffusers 1 M A D E L V-03/23 The LOOK hidden linear diffusers are designed to combine aesthetics with technical performance in HVAC systems. Black deflections vanes with a matte finish. iv. Links. Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. Linear Slot Diffusers are Vent Covers that are Linear and the “face” of a vent. Linear slot diffusers take the form of one or several long, narrow slots, mostly semi-concealed in a fixed or suspended ceiling. Finishing: EDLS: painted black Ral 9005 Finishing: EDLSB: painted white Ral 9016ceiling air diffuser PS8. Slim Line Linear Slot Diffuser from high quality aluminium extrusion in maximum lengths of 4200mm and from 1 to 8 slots. Model; FL-10 - Architectural Linear Diffuser, Aluminum, 1" Slot; FL-LED - Architectural Linear Diffuser, Aluminum, 1" Slot; File; Submittals - FL-10 LED Standard SubmittalDownload the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. 60 - $4. 23 Pages. rvt) e pertence à categoria Difusores AVAC. The CFE provides the necessary air exchange, especially in rooms that have been subsequently partitioned off. 92. ; Schedulers: various techniques for generating. Catalog excerpts. Back SubmitFind High Quality Hvac Linear Grille Manufacturer Hvac Linear Grille Suppliers and Hvac Linear Grille Products at the Best Price on Alibaba. The LOOK hidden linear diffusers are designed to combine the aesthetics with the technical performance. FLOW BAR DIFFUSER. Series 100-200 Dampers. 01283 240025. Nailor Linear Diffusers and Bar Grilles are engineered and designed to satisfy high performance applications that require an aesthetically pleasing design. Dieses Produkt wird in Form von Revit-Familie (. It is an excellent choice for single slot, high performance interior applications. ae HIDDEN LINEAR SLOT DIFFUSERS. Many appreciate linear diffusers and grilles because the subtle design makes the products less visible. com. 7. STEP SWIRL DIFFUSER. $39. 14 yrs CN Supplier . VENTILATION HOODS. Contact Us for product Inquiry. Assets/Details. Laminar Flow. Download the BIM object LOOK (Hidden linear diffusers) from Madel free of charge. The GeoFlow diffusers complement the Titus FlowBar™ linear diffuser system, ideally suited. The LOOK hidden linear diffusers are designed to combine the aesthetics with the technical performance. Series KTF Filtration Ceilings. EDLS - EDLSB Hidden linear diffusers . Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. Multi Directional Diffuser. sales@aironix. AFBD-3 model flow Bar diffuser is designed to be flushed with ceiling tile and serve. rfa/. Perforated Ceiling Diffuser. 71 AIR DIFFUSION SagiCofi m Catalogue Model Dimensions [mm] W1 WHC WO LG820 20 47 36,7 94,3 LG830 30 76 43,7 123,5 LG840 40 86 43,7 133,5 DIMENSIONS Model Dimensions [mm]The PURELINE slot diffusers are neat devices that blend in perfectly with any ceiling. 4. Series KRH Filterholder return grilles. rfa/. Transfira gratuitamente o objeto BIM LOOK (Hidden linear diffusers) de Madel. With multiple sizes, including our new 12" retrofit model, TRUFIG Linear Diffusers are more flexible for HVAC venting in any space. Linear slot diffuser. Individually control part of a zone to maximize comfort in challenging sub-spaces. Airmaster is one of the best suppliers of HVAC and Air Ducting Products to Saudi Arabia, Australia. They can be mounted in false ceilings hiding the frame with filler and leaving visible only the slot. rvt) e pertence à categoria Difusores AVAC. Slot installs to inside of the plenum box by bridges which mounted to shorter edge of the plenum box, on the other hand box installs to ceiling tith supports. FREE shipping Add to Favorites. UNet. DUC. Supply (SD-D) Return (SD-T) Curved supply/return (SD-C) 4-way Slot Diffuser (SD-4W) Slot Widths. They allow the formation of diffuser continuous lines, with active and inactive areas, HIDE linear slot diffuser, KOOLAIR, air flow 21 mm, with no outer frames, thus offering excellent aesthetics. Nominal length from 600 to 1950 mm, 1 or 2 slots; Volume flow rate range 20 – 120 (l/s)/m or 72 – 432 (m³/h)/m; Diffuser face made of extruded aluminium sections; For variable and constant volume flows; Suitable for continuous linear arrangement Diffusers are made from aluminum alloy extrusions that are fixed or clipped to cross stays, allowing for easy removal of internal vanes and pattern control elements. Klima Contra. 1 Slot 2" Standard Mud-in (Hidden Flange) 57577 12: $148. Airmaster Slim Slot linear diffuser – ASMLD model is a refined version of the conventional slot diffusers. EASY BOX ABS plenum for air distribution. rfa/. They allow the formation of diffuser continuous lines, with active and inactive areas, without breaking the uniformity of the whole. BEFORE: The old kitchen captured a moment in mid-'80s design. Linear diffusers and grilles provide a clean look that uses less space. RMT (Egg-crate grilles) Manufacturer. rvt) family format(s) and is included in the HVAC Diffusers category. هذا الفيديو يشرح عمل selection للLinear Slot Diffuser ضمن HVAC System 1- من الدقيقه 1 اللى الدقيقه 16 مصطلحات مهمه لعمل ال selection 2. DESCRIPTION: It is designed to be used in ceiling applications where traditional slot diffusers border profiles are not desired to appear. Dieses Produkt wird in Form von Revit-Familie (. Scarica l'oggetto BIM LOOK (Hidden linear diffusers) di Madel gratuitamente. StudioLAB Save Photo. rfa/. 14 yrs CN Supplier . View Online Download. rvt) family format(s) and is included in the. 283-287 Sir Donald Bradman DriveThe AC is quiet, and the hidden linear diffusers out of where air spills out aren't the least bit intrusive," says Miller. The wall diffusers are supplemented by the CFS slot diffusers and the Crossflow element CFE. We are the best HVAC Ducting company in UAE with a. Figure 12. Series DF-LIT-E Linear hidden-slot diffusers. Cons. We are producers of gypsum air diffusers. rfa/. LINEAR DIFFUSERS AND BAR GRILLES B Performance Notes: 1. 2 yrs CN Supplier . Download. Suitable for air supply and return. This product is supplied in Revit (. Download. KOOLAIR double hidden linear diffuser integrated in 1199x299 mm rectangular plate with adjustable deflector blades, model DF-KLT, with _ air passage slot. Download het BIM-object LOOK (Hidden linear diffusers) van Madel gratis. Applicable for variable-volume and constant-volume systems, as it is designed. Linear diffusers offer a minimal and clean look. 5" Slot; FL-20 - Architectural Linear Diffuser, Aluminum, 2" Slot; FL-25 - Architectural Linear Diffuser, Aluminum, 2. ZEG; Available in United States. HIDE linear diffuser Description HIDE linear slot diffuser, air flow 21 mm, with no outer frames, thus offering excellent aesthetics. Mitred ends are standard and are powder coated white c/w black anodised blades as standard. 00. 36 CAD. 99. 99. These were developed for installation in lightweight partition walls and have effective cross-talk sound insulation. Slot: FA-20 mm or FB-30 mm. Specification. The LOOK hidden linear diffusers are designed to combine the aesthetics with the technical performance. Officine Volta Hidden linear diffuser BF. The AC unit distributes air throughout the home/building via the air duct tubing and delivers hot/cold air to each room that the vent is in, through the face of the vent, which is the Air Vent Cover or Linear Slot Diffuserceiling air diffuser DIF. rfa/. rfa/. sk.