Aluminum Alloy Cryogenic Container Liquid Nitrogen Ln2 Tank with 6 Canisters Carrying Bag/Protection Cover (15L) SKU: YDS-15-NS [Capacity & Size& Weight]: This tank has a capacity of 15L, with an outer diameter of 13.9’’(355mm), mouth diameter of 1.96’’(50mm), and height of 24.4’’(620mm). It has a net weight of 19.8lbs(9kg) and can hold liquid nitrogen for a maximum of 193 days. It comes with 6 canisters and a protection cover. [High-Strength Aviation Aluminum Alloy]: The tank is made of high-strength aviation aluminum alloy, which allows it to continue functioning even if it's scratched or deformed due to improper operation. [Reliable & Superior Design]: The tank has a big vacuum space between the outer shell and the inner container, with a gas adsorbent that adsorbs other gases and maintains a high vacuum environment. High-quality vacuum plugs enhance the tightness. The lockable cover is immune to low-temperature, sound insulation, reduced evaporation of liquid nitrogen, and the enhanced handle is ergonomically designed, non-slip and easy to move. [Wide Applications]: This liquid nitrogen container is lightweight, easy to carry, has a long holding time, and is widely used for medical and scientific purposes, such as the conservation of semen, embryos, spawn, vaccines, skin, organ, and other biological material. It is also used for industrial cryogenic processing, cold assembly, instruments and components of cooling, cold therapy, and more. [NOTE]: To get the best performance from the tank, put a small amount of liquid nitrogen into the tank and allow it to cool for 20 minutes before filling. Filling a cool tank will have less evaporation than filling a warm tank, providing longer hold times. Holding time depends on many factors, including storage location, temperature, humidity, light, disturbances, etc. Max holding time cannot be guaranteed. This tank does not include or ship with liquid nitrogen The HFS (R) 21L Cryogenic Container Liquid Nitrogen Ln2 Tank with 6 Canisters and Protection Cover is made of high-strength aviation aluminum alloy, ensuring that it can still function even if the storage tank is scratched or deformed due to improper operation. With a big vacuum space between the outer shell and the inner container, the nitrogen tank is equipped with a gas adsorbent to maintain a high vacuum environment. High-quality vacuum plugs enhance the tightness, while the lockable cover is immune to low-temperature, provides sound insulation, and reduces evaporation of liquid nitrogen. The enhanced handle has an ergonomic design for non-slip security and easy movement. This liquid nitrogen container is lightweight, easy to carry, has a long holding time of up to 193 days, and comes with 6 canisters and a protection cover. It is widely used for medical and scientific purposes such as the conservation of semen, embryos, spawn, vaccines, skin, organs, and other biological materials, as well as for industrial cryogenic processing, cooling of instruments and components, and cold therapy. Orders will be shipped from our Los Angeles warehouse or by one of Amazon's Fulfillment Centers around the US (depending on the item). Most orders will arrive in 7 business days or less, expedited shipping is not available at this time. Orders over a certain dollar amount will be insured and sent signature required. CANCELLATION NOTICE: Please be sure your address is correct before placing your order! Many of our products are warehoused/shipped on our behalf by Amazon, they will not accept address changes or cancellations. We require immediate payment through PayPal for all eBay listings. RETURNS 30-Day Free Returns means we don't charge a restocking fee. Return shipping is not provided. All items include a HFS Limited Warranty. Warranty perdiod varies by product, please contact us for specifics.