12Pcs Mason Jar Lids Mushroom Liquid Culture Lids with 12Pcs 0.22um PTFE Filter

HIGH TEMPERATURE RESISTANCE: These liquid culture lids have a temperature range of 121°C (250°F) and can be autoclaved and reused. TIGHT LEAK-PROOF SEALING DESIGN: Mason Jar Lids is fitted with a rubber stopper and two PTFE synthetic filter paper patches for easy addition of water and nutrient solution to create better growing conditions.

12Pcs 86mm Mushroom Jar Liquid Culture Lid Grain Spawn Cultivation Mason Jar Lid

High TEMPERATURE RESISTANCE: These liquid culture lids have a temperature range of 115-126°C (239-259°F) and can be autoclaved and reused. TIGHT LEAK-PROOF SEALING DESIGN: Mason Jar Lids is fitted with a rubber stopper and two PTFE synthetic filter paper patches for easy addition of water and nutrient solution to create better growing conditions.