Plastic air diffuser for extractor connect duct decrease the air volume

Plastic air diffuser for extractor connect duct decrease the air volume Features: 1. It's made of ABS engineering plastic, which is antistatic and ageing resistant. It can keep away distortion for a long time. 2. The outlet sizes choice : 100mm, 125mm, 150mm, 200mm, etc. 3. Easy to set, small size, good look. 4. Ajdustable, to enlarge or decrease the air volume. Different designs: Application: Connect to any model of Hon&Guan exhaust fans. Mounting: