See Brady Products
DC axial compact fan - Circular - Nominal voltage: 24 VDC - Speed 3400 rpm - Power consumption: 18 W - Air flow: 410 m3/h - Housing material: Aluminum – Size: 172 Ø x 51 mm – 820 g - Termination: Flat plugs – Noise: 55.0 dB - Lifetime 75000 Hrs @ 40°C