40mL vial Sample Vials 100-positions for 40mL VOA vials, single hole cap with Teflon®-faced silicone septum, per EPA specifications; 3 3/4” (9.5cm) high without cap and septum; 1 1/16” OD; 24mm ID cap for water sampling Vial Transport Device Carousel/Piercing Needle design using stepper motors and optical encoders for accurate positioning.