442273 Cross Over Duct Moulding 204 x 60mm 30Inch Drop Down Connection

442273

Description	204mm x 60mm cross over section which allows a step-down in horizontal ducting. 8l/s = 0.2Pa, 13l/s = 0.5Pa, 21l/s = 1.7Pa, 29l/s = 3.6Pa, 37l/s = 6.0Pa, 45l/s = 9.1Pa, 53l/s = 12.4Pa, 61l/s = 16.6Pa.