125 mm inline fan.

 They have two speeds and the ratings on both are below. Standard 5 year warranty, and are rated at 40,000 hours continous running.

Volume:           max:  280 m3/hour  

                            Min: 220 m3/hour

Noise at 3m:    Max: 32 dB           Min 27 dB

Power Usage: Max: 37W             Min:23W

Voltage:   240 V

Unit Size:       258x241x176 mm