As an Amazon Associate, we earn from qualifying purchases. Home » Cole-Parmer » EW-96449-34 Tygon E-LFL Two-Stop Color-coded Tubing for Ismatec Pumps. To complete your Ismatec® pumping system, order two-stop c... Cole-Parmer . EW-96449-34 Attributes Brand name, Manufacturer name, ManufacturerCole-Parmer