For kegerators, soda systems, and draft beer setups of any size, VEVOR's CO2 aluminum cylinders provide dependable, clean gas. Made of corrosion-resistant aluminum and featuring a standard CGA320 valve, the series ranges from a small 2.5 lb cylinder for confined locations to a 20 lb cylinder for busy commercial pours. Each cylinder is brand new, DOT-approved, and available for filling at any homebrew shop or gas supplier. This selection of CO2 tanks works for a single house tap or a multi-keg bar setup.
Unsure which CO2 tank is best for your home bar or kegerator? VEVOR CO2 aluminum cylinders come in three sizes, from a 20-pound tank for a busy taproom to a 2.5-pound bottle that fits in a small refrigerator. Because every cylinder uses the same CGA320 valve, increasing capacity later won't require changing your regulator. Find the cylinder that corresponds with your pouring frequency by comparing the sizes below.
Choosing the right capacity means weighing your pour frequency against available tank space, since not all CO2 aluminum cylinders are made for the same purpose. This is a breakdown of VEVOR's lineup by material and size.
VEVOR's smallest CO2 aluminum cylinder is designed for confined locations. You don't need extra floor space or an external connector running through the cabinet wall, since a 2.5 lb aluminum CO2 cylinder is short enough to fit in most micro kegerators and freestanding units without taking up shelf space. Single-tap home bars, countertop soda carbonation rigs, dorm-style setups, and anyone experimenting with kegging for the first time before committing to a larger tank and investment are all ideal uses.
Refill frequency is the trade-off. Expect to switch or refill this tank more often once you're regularly pouring, especially if you're also force-carbonating fresh kegs instead of distributing already-carbonated ones, since it stores significantly less CO2 than the rest of the series. Its small size, light empty weight, and inexpensive initial cost make it a simple first purchase for occasional use, weekend entertaining, giving to a homebrewer, or keeping a backup tank on hand so a party never runs dry. Many customers also like that a tank this size can be quickly swapped in a car trunk.
Most home bar owners eventually decide on a 10 lb aluminum CO2 cylinder once they start pouring frequently. Depending on serving pressure, ambient temperature, and how much of that use is force-carbonating versus simply distributing already-finished beer or soda, it roughly doubles the run length of the smallest tank, usually lasting about ten to thirteen full-size kegs before a refill.
Although its increased height typically means it sits just outside a compact kegerator cabinet rather than inside it, usually hidden beside the unit or in an adjacent closet, this size is still doable for one person to transport out to a gas supplier or homebrew shop for a swap. This size of VEVOR's CO2 aluminum cylinders strikes the ideal balance between refill trips and footprint, which is why it is frequently found in home kegerator conversions, compact home bar designs, and multi-tap setups that see frequent weekend use, particularly for larger homes. For those who began with a 2.5 or 5-pound tank and grew weary of frequent refill runs, it's also a popular upgrade route.
The 15 lb aluminum CO2 cylinders and 20 lb aluminum CO2 cylinders are the largest in VEVOR's lineup for busy taprooms, eateries, catering businesses, or multi-tap systems. For setups that fall somewhere between light home use and full commercial volume, the 15-pound size falls comfortably between the 10 and 20-pound options. A 20-pound tank can hold about twenty to twenty-eight full kegs per fill, which significantly reduces how often staff must interrupt service to swap tanks.
Because both sizes are significantly heavier and taller than the smaller cylinders, staff usually keep them outside the kegerator cabinet. For stability, they are sometimes roped or chained to a wall or cart because a top-heavy tank may tip if it is bumped. Sizing up to one of these larger CO2 aluminum cylinders will mean fewer disruptions during a shift and fewer monthly trips to the refill counter if your setup runs many taps, routinely hosts events, or sees consistent daily traffic behind a bar. For precisely this reason, food trucks and restaurants with soda fountains next to beer taps frequently use one of these two sizes.
When comparing CO2 aluminum cylinders to their steel equivalents, material matters as much as size. For the 15- and 20-pound sizes, where every additional pound of tank weight adds up, aluminum is much lighter than steel at the same fill capacity, making it easier to swap tanks and transport them to a refill station. Keep in mind that the weight listed on the tank represents the CO2 fill capacity rather than the overall weight of the cylinder, because the aluminum shell adds a few pounds.
Additionally, aluminum won't corrode on the inside like an unlined or chipped steel tank can, which matters for beverage-grade gas going straight into something you're going to drink. Large fixed commercial systems that prioritize upfront cost per pound of capacity and don't care about portability can still use steel cylinders. However, aluminum's corrosion resistance and lighter handling make it the preferred material for portable CO2 aluminum cylinders, which is why most home kegerator kits are built around it by default. This is especially true for home bars, kegerators, and any place you move, refill, or store a tank indoors.
For a trouble-free setup, using your CO2 aluminum cylinders and the features they come with is just as important as choosing a size. Here are a few things to consider before you buy.
The most popular application for VEVOR's CO2 aluminum cylinders is draft beer dispensing, whether it's a multi-tap system operating behind a home bar or small restaurant or a single-tap kegerator in a garage. If you often carbonate your own batches instead of buying pre-carbonated kegs, keep that in mind when choosing a size. The same tanks can also handle force-carbonating a flat keg straight from the brewery or a homebrew batch, which requires substantially more gas than distributing alone.
Since the same CGA320 regulator configuration used for beer also works well for carbonating soda syrups or plain water at home, soda and sparkling water systems are another popular combination. For the same force-carbonation purpose, kombucha makers also reach for these cylinders. For precisely this reason, mid-size CO2 aluminum cylinders are frequently used by small cafés and mobile beverage carts: they are sufficiently portable to be moved between sites while yet lasting a full day of service without requiring a mid-shift swap. Over a weekend event, a single 10-pound cylinder can easily support a cart pouring sodas without needing an additional tank.
Any size you choose will function with the same regulator if you boost capacity later without purchasing new hardware, because every cylinder in this range uses a CGA320 valve, the standard fitting for beverage-grade CO2 regulators. The 10, 15, and 20-pound models have a carry handle that helps once the tank is full and significantly heavier than when it was empty on the shelf. Additionally, a corrosion-resistant spray coating over the aluminum shell adds another layer of protection against rust and scuffs from regular handling.
Just as important as the gear itself is certification. Refill stations are legally prohibited from filling a cylinder without current, valid marks on the collar, so look for at least a DOT approval stamp and, if you're in Canada, a TC stamp as well. Buying brand-new CO2 aluminum cylinders instead of an older exchange tank lets you reset the five-year clock and avoid inheriting someone else's test date, since aluminum cylinders also require hydrostatic retesting every five years to remain in service. Although it's a minor detail, it may mean one more fill before you need to consider retesting.
Home bars, kegerators, and commercial draft systems can all benefit from VEVOR's CO2 aluminum cylinders, ranging from a small 2.5 lb bottle to a powerful 20 lb tank. With a CGA320 valve, a DOT-approved certification, and a brand-new hydro test date, every cylinder is ready to fill the day it is delivered. Whether you're outfitting a single tap or a multi-keg arrangement, VEVOR offers reasonable pricing across the full size range. Compare capacities, assess your available space, and then add the CO2 tank that best suits your system, backed by prompt shipping and post-purchase assistance, to your order.
The frequency of use determines this. A 10-pound tank is suitable for standard home bars, a 2.5-pound cylinder is suitable for sporadic home use, and 15-20-pound cylinders are suitable for commercial or high-volume setups where frequent refills are impractical.
Depending on serving pressure, temperature, and whether you're also force-carbonating, a 10 lb cylinder can dispense roughly 10–13 full kegs, whereas a 20 lb cylinder can dispense about 20–28. Smaller cylinders scale down proportionately.
Indeed, the DOT has certified VEVOR's CO2 aluminum cylinders, and several sizes have also received TC clearance for use in Canada. Before your initial refill, make sure the collar's stamped certification is up to date.
For beverage-grade gas purity, aluminum's internal rust resistance and reduced weight matter. Steel is more common in large stationary business installations than in portable setups because it is heavier but often less expensive at larger volumes.
To keep aluminum CO2 cylinders functional, hydrostatic retesting is required every five years. Verify the stamped test date before you travel to refill because most refill stations automatically verify it and won't fill a cylinder that is past due.
