Product Name: Air Grill, Air Diffuser with Different Size Model NO.: diffusers Certification: CSA, RoHS, UR, ISO, UL, CE, CCC Installation: Outlet Venetian-Style Air Layers: Bunk Type: Square Diffuser Usage: for Experiment, for Air Conditioner, for Manufacture, for Refrigerate Material: Aluminum Trademark: MAXCOOL Transport Package: Seaworthy Specification: Customized Origin: China Product Description Product DescriptionHVAC air conditioning 4-WAY SQUARE CEILING AIR DIFFUSER with Different Sizedampers ceiling air diffusersDescriptionMaterialAluminum alloy, plastic, stainless steelThickness0.8, 1.0 or 1.2 mm for optionalTypeWelding or pounchingPlace of OriginChina (Mainland)Neck Size150×150, 225×225, 300×300, 375×375, 450×450...FinishedAnodized or powder coating or mill finishedAvailable in 1,2,3 and 4 way throw, our ceiling diffusers are designed to handle large volumes of air quietly with excellent throw pattems. Centre core is easily removable for cleaning.Comes in square or rectangular profiles. Suitable for mounting on all kinds of ceiling. Can be flush mounted and also " Lay-in" onto ceiling Tee-bar.From extruded aluminum ofminimum 1.0mm thickness. All grilles are manufactured from highly corrosion resistant heavy gauge aluminum. FinishesStandard powder coated white finish. Painted finish will be enamel coated and oven baked.Anodised finishes and other finishes are also available upon request.Accessory:OBDNeck adaptorPackaging & DeliveryPackaging Details:cartons and palletsPortchinaLead Time:10-20days