Puritan 25-83010 PDB BPW Puritan ESK Sampling Kit - 4 inch Sterile Polyester Swab & 10ml Buffered Peptone Water, Tube, BulkPuritan 25 83010 PDB BPW Puritan ESK Sampling Kit 4 inch Sterile Polyester Swab & 10ml Buffered Peptone Water, Tube, Bulk Sterile Environment Sampling Kit Pre Filled with 10ml Buffered Peptone Water Packaging: 6 boxes of 50 individually wrapped systems = 300 cs For environmental surface sampling Easy edge peel packaging Quick turn leak resistant cap High quality Puritan polyester tipped swab Swab is securely attached to cap Pre filled with 10ml