Round ventilation duct

Feature: 
1)Aluminum alloy material , Multi-layer conicals shape. 
2)Excellent apperance with molding vane and outside frame into integrity. 
3) Offers maximum air flow while maintaining low noise level. 
4) Inside core can be dismantled,easily install and reassembled. 
5) Optional with round sector damper or butterfly damper 
6) Natural anodized aluminum finish or powder coated. (any color is available) 
Functions: step down diffuser rings deflect air stream 360 degrees.as the air outlet of central air-condition system terminal with the larger diffusion area. 
Use: for upward airflow,suitable for ceiling , Suitable in shopping malls, offices, hotels, restaurants and other building 
as being requested 
Remark: 
Dimensions,colors,finishes,designs and other specifications can be customized according to customers' requirement. 
- Made of Aluminum
- Removable Core
- With Butterfly Damper
- Powder Coated, Standard Color RAL 9010/9016, other Colors Availble 
- Anodized Aluminum Availble
- 5 Sizes: 150, 200, 250, 300, 350,450(inner)mm