Quick view Remove from Compare Compare Items 2.0 mL, 11 mm Aluminum Crimp-Top Seals with PTFE/Natural Rubber Septa, Silver, 100/pk SKU : RK21174 Log in for pricing Pending approval Restek RK21174 2.0 mL, 11 mm Aluminum Crimp-Top Seals with PTFE/Natural Rubber Septa, Silver, 100/pk