45 Cubic Foot Tanks

A recertified nitrogen cylinder is a used steel tank that has been refurbished, hydrostatically tested, DOT and TC approved, and fitted with a new CGA580 valve before sale. Reconditioning restores it to reliable service at a lower price than a new cylinder. Each tank is freshly painted and pressure-checked, so it performs like new.

The purchase price for this recertified 45 cu ft nitrogen cylinder is shown on the page, and buying reconditioned costs less than a comparable new tank. Refill cost is set by your local gas supplier and varies by region and nitrogen purity. Because you own the cylinder, you can refill it rather than pay ongoing rental fees.

This 45 cu ft steel nitrogen tank weighs about 29 pounds empty, and more once filled with compressed nitrogen. At roughly 27 inches tall and 7 inches in diameter, it is manageable for one person to move and secure upright. Its size sits between a small portable bottle and a large industrial cylinder.

This nitrogen cylinder suits a wide range of uses, including HVAC line purging, hydroponics, aquariums, beverage dispensing, laboratory work, and industrial applications. Dry nitrogen displaces oxygen and moisture, which makes it useful for purging, blanketing, and pressure testing. Match a regulator to your task and the CGA580 valve.

No, the cylinder ships on its own, so you will need a separate CGA580 nitrogen regulator suited to your job. For HVAC purging choose a high-pressure regulator, while beverage or hydroponics setups use a low-pressure regulator and gauge. The CGA580 outlet is standard, so most nitrogen regulators thread straight on.

Yes, this cylinder holds compressed dry nitrogen, which is ideal for purging refrigerant lines during HVAC and refrigeration work. Dry nitrogen leaves no moisture behind, helping keep systems clean during brazing and pressure testing. Pair it with a regulator rated for your required test pressure.

This steel nitrogen cylinder is on a 5 year hydrostatic retest interval, and it ships hydro-tested within the prior 18 months. The last test date is stamped into the collar, and a gas supplier checks it before filling. Buying recertified means the retest clock is recent, so it is ready to use now.

You own this cylinder outright once purchased, with no rental contract or recurring fees. Ownership lets you refill or exchange it at any qualified gas supplier rather than being tied to one vendor. Keep your purchase and hydro-test records to prove ownership at exchange.

Owned nitrogen cylinders range from small 20 cu ft bottles up through 40 and 45 cu ft mid sizes to large 300 cu ft cylinders. At 45 cu ft, this tank gives more capacity than a compact bottle while staying easy to move and store. It suits users who want fewer refills than a small tank without the bulk of a large one.

No, all cylinders ship empty for transport safety, so this tank must be filled before use. Take it to a gas supplier that can provide nitrogen and fill to the marked service pressure. Once filled and fitted with a CGA580 regulator, it is ready for HVAC, hydroponics, beverage, or industrial use.