One Dozen (12). Used to seal a plastic liquid culture lid to your mason jars. Provides a leak free seal. Sterilize-able. Works wonderful in ... more info
One Dozen (12). These filters fit within the rim of spawn jars underneath a metal or plastic lid, allowing air exchange but preventing the passage of ... more info
One Dozen (12). These filters fit within the rim of spawn jars underneath a metal or plastic lid, allowing air exchange but preventing the passage of ... more info
High quality round bottom Borosilicate (Pyrex) glass culture tubes with marking spot and polypropylene liner-less screw-on cap; not a cheap friction ... more info
