10 Inch RVK Circular Duct Fan 250mm SDF_100 Comfort rating: 10 degrees it will sound a Comfort rating: 10 degrees while the stylish boho design adds a touch of flair to any outfit allowing for easy connections and installation in virtually any position 6 Watts 428 m^3 h CA50 150 330 RVK150L RVK 150 L1 Large 109 Watts 720 m^3 h CA50 150 660 RVK160 RVK 160 A1 Large 59 Watts 436 m^3 h CA50 160 500 RVK160L RVK 160 L1 Large 106 Watts 731 m^3 h CA50 160 660 RVK200 RVK 200 A1 Large 104 Watts 796 m^3 h CA50 200 500 RVK200L RVK 200 L1 Large 153 Watts 1073 m^3 h CA50 200 660 RVK250 RVK 250 A1 Large 109 Watts 860 m^3 h CA50 250 500 RVK250L RVK 250 L1 Large 159 Watts 1134 m^3 h CA50 250 660 RVK315 RVK 315 A1 Large 222 Watts 1362 m^3 h CA50 315 660