Item # Description Case Pack
  5310-10 Black, Polypropylene Open Hole Cap 1000 pieces View Product
  5310-10B Blue, Polypropylene Open Hole Cap 1000 pieces View Product
  5310-10G Green, Polypropylene Open Hole Cap 1000 pieces View Product
  5310-10R Red, Polypropylene Open Hole Cap 1000 pieces View Product
  5310-10W White, Polypropylene Open Hole Cap 1000 pieces View Product
  5310-10Y Yellow, Polypropylene Open Hole Cap 1000 pieces View Product
  5320-10 Solid Top, Black Polypropylene, Unlined Cap 1000 pieces View Product
  5330-10 Top Seal™ Closure, Clear Polypropylene, molded 10mil septa 1000 pieces View Product
  5330SB-10 Starburst Top Seal™ Closure, Clear Polypropylene, molded 10mil septa 1000 pieces View Product
  5360-10 Solid Top, Black Polypropylene PTFE/F217 Lined Cap 1000 pieces View Product

Larger opening provides increased target area for needle penetration. Closures are ideal for autosamplers requiring closures to support or hang in vial tray (Hitachi, Jasco, Shimadzu). Available in a wide assortment of colors. The Top Seal™ closure with a 10mil molded septa allows for easy needle penetration and is inert to most solvents. The one piece design saves time by eliminating the process of assembling liners in the closures.