Name: air diffuser, square diffuser, ceiling diffuser, 4 way air diffuser Material: high quality aluminum Features: 1. clean lines with no unsightly visible screws 2. with removable core 3. available with optional opposed blade damper 4. white powder coated finish ??? standard color: RAL9010. RAL9016 5. other color are?available. Such as anodized finish 6. sizes according to client's need ?

??Model	????Neck Size (HxL mm)
?	???????? 150X150
?	?????????225X225
? CD-A	???????? 300X300
?	???????? 375X375
?	???????? 450X450
?	?????????525X525
?	???????? 600X600