TPP Vent screw cap for flask 150 / 300 cm²

Item No.90850
Lid for TPP Tissue Culture Flask. The "Vent" lid can be placed in 2 positions: 1) One click and the "VENT" screwdriver is locked in the aeration position. This can be visually controlled by the height of the lid located at "12 o'clock". 2) Turn the "VENT" screw cap clockwise 90 ° to close the bottle
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