Foam StopperBack to catalog$2.99Sold outSold outSave this product for later Favorite Favorited View FavoritesHave questions? Message UsShare this product with your friendsShareSharePin itFoam StopperBack to catalogProduct Details Faom stopper for 1000ml and 2000ml flask. These foam stopper allow airflow in and out of the flask while keeping your starter or liquid safe. Show More
