The CR1224d is the standard sandwich cover with black silicon used for 24 deepwell MTPs. For longer cultivations, the CR1224e cover can be considered to limit evaporation even further.

Other characteristics of the covers:

• The sandwich cover its function relies on the vertical force applied by a clamping system such as CR1801h or CR1700
• Autoclavable and thus reusable many times
• The cover has a blue and green filter to prevent airborne contamination
• The silicon layer is made from very durable rubber, which is free of any animal product