HP 790 Ink System Cleaning Kit. Operating relative humidity range: 30 - 70 %, Operating temperature range (T-T): 15 - 30 °C, Storage relative humidity range: 10 - 80 %. Weight: 15 kg, Package weight: 19.4 kg. Package dimensions (WxDxH): 510 x 660 x 410 mm, Pallet size (EU): 1170 x 1330 x 1350 mm