Type and Size Options: This compact GL45 safety feeding cap is available in a small size, equipped with a 3-port configuration. Customers can also select from 1 to 4 ports and choose between small, medium, and large sizes to suit various laboratory needs. High Durability and Safety Features: Crafted from 304 stainless steel, the cap is autoclavable at temperatures up to 140C, ensuring it is sturdy, , and to rust and high temperatures. This makes it an ideal choice for rigorous laboratory environments. Compatibility and Usage: Specifically designed to fit GL45 neck size bottles, this cap is perfect for sampling liquid and mobile phase applications. Its small size is tailored for silicone tubing with an inner diameter of 3mm/0.76 inch, facilitating precise and safe fluid handling. Precise Dimensions for Secure Fit: The cap features an inner diameter of 45mm and a height of 31mm, with a total height of 56mm. The ports have an inner diameter of 4.6mm and an outer diameter of 5.9mm, with an inner aperture of 3mm, ensuring a tight and leak-proof connection to tubing. Color: As Shown Material: plastic Specification: 2 holes Package Contents: 1*304 Stainless Steel Cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.