Approx. 6" long, 3.5" wide, 3" tall. 

Vented filter lids for sterile air flow in flask. Sterile pack of 25 flasks with lids; autoclavable. High quality, made in Belgium. Red filter, not white. Due to air filter, media should be slightly diluted to account for evaporation. Air filtration gives higher quality plantlet quality that establish faster when deflasked.

Due to the sealing and warping with multiple autoclaves, we recommend up to re-autoclaving two times for best results. 

Exact measurements: 

Length 150 mm
Width 90 mm
Height 80 mm