Mason Jar Lids for Culture Vessels - 12-pack

Modified mason jar lids fitted with polypropylene filter membranes or vents for use as tissue culture vessel lids. The filter allows gas exchange while restricting airborne contamination, providing better CO₂/O₂ management than sealed lids. Compatible with wide-mouth mason jars used as low-cost culture vessels. Autoclave-sterilizable; replace membranes if damaged or discolored.