9kg Gas Bottle (LCC27 Gas Bottle) & 4kg Gas Bottle Dimensions & Size

The 9kg gas bottle (LCC27 Gas Bottle) and the 4kg gas bottle are the most common gas bottle sizes for outdoor cooking and heating.

The 9kg gas bottle is the most popular for BBQ gas and gas patio heaters. Get it in the new LCC27 gas bottle (type 27 gas bottle) version so no LCC27 adaptor is needed.

The 4kg gas bottle is favoured for camping gas stove, camping gas cooktop and camping gas heater applications.

The 4kg gas bottle is a small gas bottle that is favoured for camping gas as it is the smallest gas bottle, making it easy to transport.

9kg Gas Bottle & 4kg Gas Bottle – Dimensions – Capacity

9kg gas bottle and 4kg gas bottle dimensions shown are approximate. Actual dimensions may vary. Gas bottle sizes vary by manufacturer. Capacity is based on safe filling volume, taking into account possible undersize imported gas bottles.

Have questions? See our SWAP’n’GO BBQ GAS FAQs

9kg Gas Bottle vs 8.5kg and 4kg Gas Bottle vs 3.7kg

The filling of nominal “9kg” gas bottles with 8.5kg of gas was a safety initiative of the Australian LPG industry.

The same is true of “4kg” gas bottles being filled with 3.7kg of gas. But why?

Unfortunately, there are many LPG gas bottles that are labelled as a 9kg gas bottle or 4kg gas bottle that are actually manufactured undersize, with less than the labelled capacity.

This is a result of the manufacturing and design variances amongst the many manufacturers of gas bottles that are imported, into Australia, from many countries around the world.

Surprisingly, Australia has no mandatory standard sizing, so they are all approved for sale.

Filling undersized gas bottles to a full 9kg or 4kg, thus leaving less than 20% ullage (see image), would create an overfill, which would be a major safety issue. Cold burns, fires and even possible explosion could result.

The solution was to take into account the cylinder size variations and standardise on 8.5kg gas bottle and 3.7kg gas bottle refills.

This allows for the size variances between gas bottles and prevents any unsafe overfilling.

To make sure that consumers are fully informed, the gas bottles are labelled accordingly.