Deckenluftdurchlass

square air diffuser,XYSA Features: 1) Materials :Aluminium Alloy. 2) One way, two way, three way and four way discharge is available. 3) Removable core for easy installation and maintenance 4) Offers maximum air flow while maintaining low noise level 5) White powder-coating finish or no painting for choice,or color you are prefer. 6) Damper or filter is optional. 7)OEM is available. 8)Packing:every corner of the goods will be protected by a carbord at first,then packed with a PE bag,4-8 pcs in a box. Outer standard Size: As per your request(Neck size+145mm) Neck size: A*B(size is as per your request)