McKesson Tube Closure Polyethylene Flanged Plug Cap Orange 13 mm For Use with 13 mm Blood Drawing Tubes, Glass Test Tubes, Plastic Culture Tubes NonSterile (1175282_BG) 1000/BGIdeal for recapping 13 mm blood drawing tubes, glass test tubes and plastic culture tubes. Designed for easy on and easy off use, featuring double thumb tabs. Flexible closures protect from aerosols of highly infectious microorganisms. Guard samples against cross contamination and laboratory work areas against infection and spillage. Precision molded, low density polyethylene (LDPE) designed to fit firmly on the tube. Closures remain sturdy under most