Puritan Puritan 25-83010 PD BS ESK Sampling Kit - 10ml Butterfield's Solution, Polyester, TubePuritan Puritan 25 83010 PD BS ESK Sampling Kit 10ml Butterfield's Solution, Polyester, Tube Sterile Environment Sampling Kit Pre Filled with 10ml Butterfield's Solution Packaging: 50 individually wrapped systems = 50 cs Intended for examinations of water as well as dairy, food, and pharmaceutical products For environmental surface sampling Easy edge peel packaging Quick turn leak resistant cap High quality Puritan polyester tipped swab Swab is