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Oxygen Free Nitrogen (OFN)

All A-Gas refrigeration cylinders are subject to rental charges. Only trade credit account customers can purchase gas cylinders online. Trade cash account customers can purchase gas cylinders via their local branch and will be required to pay a deposit equivalent to the lost cylinder charge at the time of purchase.

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  • This product requires F-gas certification

  • Replaces 628800

  • Replaces 628801

Oxygen Free Nitrogen (OFN) has a range of uses including pressure testing systems and detecting leaks. It can also be used when brazing to help reduce oxidation, which leads to a cleaner joint and no build-ups of scale.

At Wolseley, we’re refrigeration specialists and wholesale partners to A-Gas – the industry’s leading supplier of oxygen free nitrogen. So, you’ll find nitrogen gas cylinders in a range of sizes – from 10 to 40 litres. If you are using OFN while brazing, we also stock a great range of welding gases & acetylene.

As with other refrigeration gases, for safety reasons we can only sell OFN to trade account holders. If you are a refrigeration professional, but don’t currently have a trade account, why not sign up now?

Trade accounts bring a huge range of benefits, including great trade prices, access to product selector tools, PartsArena and free delivery to a site or home on all orders. Or, you can collect at your nearest branch for free – whatever is more convenient.