Don’t Use an LCC27 Gas Bottle Adapter (LCC27 to POL Adaptor) in Lieu of LCC27 Gas Bottles
Owners of barbecues and gas appliances should not use an LCC27 gas bottle adapter to make the new gas bottle connection from old POL gas bottle connections (gas bottle fittings) to appliances with new LCC27 gas bottle connections.
The use of an adapter gas bottle instead of an LCC 27 gas bottle, with the LCC 27 new gas bottle connection, puts you and you family at risk, as the LCC27 gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor) is prone to leakage.
Staying safe while using LPG gas (Liquefied Petroleum Gas) for your barbecue or portable gas appliance is crucial.
That includes using LPG gas bottles that have the correct cylinder valve for your gas appliances.
In recent years, there have been important changes, with the LCC27 gas bottle, to the types of cylinder valves and gas bottle connections (gas bottle fittings) used on LPG gas bottles for barbecues and portable gas appliances in Australia.
In addition, LCC27 adaptors (LCC27 to POL adaptor or POL to LCC27 adaptor) are banned in in all States. WA, QLD, VIC, TAS, NT and SA state governments have posted warnings against LCC27 adaptor use. This follows a homeowner receiving severe burns resulting from a gas cylinder fire in Western Australia whilst using a gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor). The injured person needed to be hospitalised for further treatment.
With SWAP’n’GO nearby gas bottle swap, you can get small gas bottle exchange at a hardware store, gas station or service station near you with an older POL BBQ gas bottle for a newer LCC27 gas bottle with gas, at the same SWAP’n’GO prices
So, no LCC27 adaptor (LCC27 to POL adaptor or POL to LCC27 adaptor) needed and the associated safety hazards are avoided.
So, if you purchase a new BBQ with an LCC27 gas bottle connector but have old POL gas bottles, you just need to go to SWAP’n’GO for a gas bottle swap.
Why the Change from POL to LCC27 Gas Bottle Valve for BBQ Gas Bottles
The reason for the change from the old POL gas bottle valve (Type 21) to the new LCC27 gas bottle valve was based on an unacceptable rate of BBQ fires and injuries, as evaluated by the authorities.
Further to this, the actual connection between the BBQ regulator and the POL gas bottle valve was determined to be the major problem, as they could develops gas leaks too easily.
The new LCC27 gas bottle valve has a new built-in safety device, a backcheck valve, that prevents the gas from coming out unless the new gas bottle connection is properly done, preventing leaks and fires.
There is also a thermal cut-off designed into the new appliance connection to stop the gas flow in the event of a fire.
Timeline for the Change from POL to LCC27 Gas Bottle Valve
- 1 April 2021: Gas bottle (gas cylinder) suppliers were required to change over from the POL valve (Type 21) to the LCC27 valve for all BBQ gas bottle sizes in Australia.
- 1 April 2022: The manufacturers of BBQs, patio heaters and other outdoor gas appliances changed to the new LCC27 gas fittings.
- 2032: Target date to have all old POL BBQ gas bottles removed from circulation.
The one-year head start on the change for the gas bottles was to make sure that there were sufficient LCC27 gas bottles in circulation prior to the appliance changeover.
The ten-year timeline is based on the ten-year expiry for BBQ size gas bottles.
Statistically, each year 1/10th of the BBQ gas bottle population will require an inspection, at which time the old POL valve is removed and a new LCC27 valve is fitted.
By 2032 the last of the old POL gas bottles will have required an inspection and the last of the POL valves removed.
NOTE: This change only applies to BBQ size gas bottles and not 45kg and larger gas bottles.
New Gas Bottle Connection for Gas Bottles for BBQ
All outdoor gas appliances sold after 1 April 2022 must have LCC27 gas fittings and will only work with LCC27 gas bottles.
An LCC27 gas bottle has the LCC 27 new gas bottle connection (gas bottle fittings).
LCC27 gas bottle connections (LCC27 gas bottles) replace the old POL gas bottle connections (gas bottle fittings) on gas bottles for BBQ – specifically the 9kg gas bottle and 4kg gas bottle in Australia. You can find the LCC27 gas bottle at SWAP’n’GO.
There is no LCC 27 new gas bottle connection (gas bottle fittings) for 45kg gas bottles and larger. as the LCC27 valve change only applies to BBQ size gas bottles. So, there are no 45kg LCC27 gas bottles.
LCC27 Gas Bottle and LCC27 Gas Bottle Adapter – LCC27 to POL Adaptor
Use of an LCC27 to POL adaptor or POL to LCC27 adaptor (LCC 27 gas bottle adapter), in lieu of an LCC27 gas bottle, increases the chance of gas leaks.
An LCC27 gas bottle is a gas bottle with a safety enhanced LCC27 valve.
An LCC27 gas bottle is typically a 9kg gas bottle or a 4kg gas bottle size.
The LCC 27 safety improvements include the prevention of gas release when no regulator is attached.
LCC27 gas bottles, also called a type 27 gas bottle, are primarily used in Australia.
An LCC 27 gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor) is both unsafe and illegal.
The LCC27 to POL adaptor or POL to LCC27 adaptor (LCC27 gas bottle adapter) was intended for adapting an LCC27 gas bottle regulator on a gas bottles with POL gas bottle connections (gas bottle fittings). NEVER USE AN ADAPTOR.
No LCC27 to POL adaptor or POL to LCC27 adaptor (LCC 27 gas bottle adapter) is required when a new LCC27 gas bottle is used with an older POL regulator equipped appliance.
The LCC27 gas bottle is backwards compatible, accepting both a POL regulator and LCC27 gas bottle regulator.
Note that POL valves are still used on 45kg gas bottles, as well as larger sizes. Once again, there are no 45kg LCC27 gas bottles.
New Gas Bottle Connection: Mismatched Threads with LCC27 Gas Bottle vs LCC27 to POL Adaptor
Here’s why an LCC27 to POL adaptor or POL to LCC27 adaptor (LCC27 gas bottle adapter) is a potential hazard and illegal:
There are currently two main types of valves on LPG gas bottles – ones with Type 21 POL gas bottle connections (gas bottle fittings) and the other with LCC27 gas bottle fittings (type 27 gas bottle), with the LCC 27 new gas bottle connection (gas bottle fittings). These valves have different thread directions:
- POL gas bottle connections (gas bottle fittings) is the older type gas bottle fittings with left-handed thread that does not have the new gas bottle fittings
- LCC27 gas bottles have the LCC 27 new gas bottle connection (gas bottle fittings) and have a right-handed thread
Barbecues or portable gas appliances manufactured after 1 April 2022 will have the LCC27 gas bottle fittings, with the LCC 27 new gas bottle connection (gas bottle fittings), on their gas hoses.
Appliances manufactured before then will have the older POL gas bottle connections (gas bottle fittings).
An LCC27 gas bottle will connect to barbecues and portable gas appliances that have either POL gas bottle connections (gas bottle fittings) or LCC27 gas bottle, with the LCC 27 new gas bottle connection (gas bottle fittings).
However, LPG gas bottles with POL gas bottle connections (gas bottle fittings) can only be connected to appliances with POL gas bottle connections (gas bottle fittings), as they do not have the LCC 27 new gas bottle connection (gas bottle fittings) required by an LCC27 regulator.
It’s important to check what kind of connection you have on your barbecue or portable LPG gas appliance before you buy or swap your LPG bottle.
It is dangerous and illegal to use an LCC27 gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor) on POL gas bottle connections (gas bottle fittings) to enable it to be compatible with the LCC 27 new gas bottle connection (gas bottle fittings) on a gas appliance designed for LCC27 gas bottle connections (gas bottle fittings).
This is because the LCC27 gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor) has two connections, each with a different thread direction, so as you tighten one connection you can actually loosen the other connection, potentially leading to a gas leak, on the LCC 27 gas bottle adapter, and the risk of fire or injury.
How to Tell the Difference Between Old and LCC 27 New Gas Bottle Connection
Older regulators with POL gas bottle connections (gas bottle fittings) have a male connector which is threaded on the outside.
The LCC 27 new gas bottle connection (gas bottle fittings) on a LCC27 gas bottle regulator has a larger female connector which is threaded on the inside.
The LCC 27 new gas bottle connection (gas bottle fittings) on a LCC27 gas bottle is backwards compatible with barbecues and gas appliances that have either POL gas bottle connections (gas bottle fittings) or LCC27 gas bottle fittings, since it has both an internal POL gas bottle fittings thread and an external LCC27 gas bottle fittings thread. See image below.
Safety Feature Defeated with LCC 27 Adapter Gas Bottle Use
Adapter gas bottle (LCC27 to POL adaptor or POL to LCC27 adaptor) use increases the chances of gas leaks.
The biggest problem is the LCC27 to POL adaptor or POL to LCC27 adaptor (LCC 27 gas bottle adapter) creates a situation having a right and left-handed thread on the same connection.
Tightening one on a LCC 27 gas bottle adapter may loosen the other, creating the possibility of gas leaks.
If you have a gas appliance with LCC27 gas bottle connections (gas bottle fittings), and your current LPG gas bottle has POL gas bottle connections (gas bottle fittings), you should swap your POL gas bottle for an LCC27 gas bottle instead of using an LCC 27 adapter gas bottle (LCC27 to POL adaptor or POL to LCC27 adaptor) fix.
The LCC27 gas bottle valve, with the LCC 27 new gas bottle connection (gas bottle fittings), is designed with improved safety features and protection negated by the LCC 27 gas bottle adapter.
The key safety feature of the LCC 27 new gas bottle connection (gas bottle fittings) on an LCC27 gas bottle is that it will not release gas unless the LCC27 appliance gas bottle fittings are properly installed.
In contrast, gas bottles with older POL gas bottle connections (gas bottle fittings) will release gas without anything being attached, creating a potential safety hazard.
However, an LPG gas bottle with POL gas bottle connections (gas bottle fittings) are incompatible with barbecues or portable LPG gas appliances that have an LCC27 new gas bottle connection (gas bottle fittings).
The LCC27 cylinder valves provide connection safety by ensuring there are no points where leakage could occur.
An LCC 27 adapter gas bottle using an LCC27 to POL adaptor or POL to LCC27 adaptor (LCC 27 gas bottle adapter) may override the new safety feature, on the LCC27 new gas bottle connection (gas bottle fittings), and can increase the risk of accidental gas release, compromising your safety.
Understanding the POL and LCC27Gas Bottle Valve Types
POL Gas Bottle Fittings
A POL gas bottle connections (gas bottle fittings) are the older style commonly found on older gas bottles and appliances manufactured before 2022.
A POL gas bottle connections (gas bottle fittings) valve uses a left-hand thread with a smaller diameter than the LCC27 new gas bottle connection (gas bottle fittings) on a LCC27 gas bottle.
LCC27 Gas Bottle: LCC 27 New Gas Bottle Connection – LCC 27 New Gas Bottle Fittings
Introduced for improved safety features, the LCC27 new gas bottle connection (gas bottle fittings) on LCC27 gas bottle valves are now mandatory on all barbecues and gas appliances manufactured since April 2022.
The LCC27 gas bottle valve has LCC 27 new gas bottle connection (gas bottle fittings) with a right-hand thread and a larger diameter than POL gas bottle connections (gas bottle fittings).
The good news is that the LCC 27 new gas bottle connection (gas bottle fittings) on an LCC27 gas bottle valve is backward compatible, meaning it can connect to both POL gas bottle connections (gas bottle fittings) and one intended for an LCC27 gas bottle with LCC 27 new gas bottle connection (gas bottle fittings) (see image above).
Choosing the Right Combination – LCC27 vs POL:
- LPG Gas Appliance Age: Barbecues and portable LPG gas appliances manufactured for Australia before April 2022 will most likely have POL gas bottle connections (gas bottle fittings) and can be connected to an LPG gas bottle with either POL gas bottle connections or LCC27 gas bottles with the LCC 27 new gas bottle connection (gas bottle fittings). Newer LPG appliances with LCC27 new gas bottle connections (gas bottle fittings) cannot be connected to an LPG gas bottle with POL gas bottle connections (gas bottle fittings). Do not use an LCC27 adaptor (LCC27 to POL adaptor or POL to LCC27 adaptor) to connect them. Also, never try to screw an LCC27 regulator into a POL gas bottle. Both practices are extremely unsafe.
- LPG Gas Bottle Valve: LPG gas bottles come with either POL gas bottle connections (gas bottle fittings) or LCC27 new gas bottle connection (gas bottle fittings). If you have an LCC27 gas bottle, it can be used with appliances that have either POL gas bottle connections or an LCC27 new gas bottle connection (gas bottle fittings). However, LCC27 gas appliances with the LCC 27 new gas bottle connection (gas bottle fittings) on the LCC27 regulator cannot be used with a POL gas bottle.
The LCC27 Gas Bottles Phase-In – LCC27 Gas Bottle in SWAP’n’GO Cages
The LCC27 gas bottle at SWAP’n’GO has been phasing in since 2022 and this will continue over the next few years.
LCC27 gas bottles at SWAP’n’GO are being introduced into the gas bottle population at a rate that is faster than new LCC27 gas appliances are being sold.
The result is that you will still find both the POL and LCC27 gas bottle in SWAP’n’GO cages for the next few years.
This phase-in process, for the LCC27 gas bottle at SWAP’n’GO, is designed to provide the appropriate number of each type of gas bottle as time goes by.
Ensure Safe Use of Your LPG Barbecue or Portable Gas Appliance:
- Don’t use an LCC27 to POL adaptor or POL to LCC27 adaptor (LCC27 gas bottle adapter) to connect a POL gas bottle to an LPG gas appliance with an LCC27 regulator with the LCC27 new gas bottle connection (gas bottle fittings).
- If you have been using a LCC27 gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor), remove it and discard it. Swap your POL gas bottle for an LCC27 gas bottle at SWAP’n’GO for the same SWAP’n’GO prices.
- When you are ready to get a fresh LPG gas bottle, be sure to check the connection type on your barbecue or portable gas appliance so that you can select the right bottle for your appliance. If you are unsure, just pick an LCC27 gas bottle, as the LCC27 new gas bottle connection (gas bottle fittings) will work with both POL and LCC27 regulators.
- If your LPG gas appliance was manufactured after April 2022, it will have an LCC27 new gas bottle connection (gas bottle fittings) and you must only connect it to an LCC27 gas bottle. Do not use an LCC27 adaptor (LCC27 to POL adaptor or POL to LCC27 adaptor) to connect them. Also, never try to screw an LCC27 regulator into a POL gas bottle. Both practices are extremely unsafe.
- Barbecues and portable gas appliances manufactured for Australia before April 2022 will most likely have POL gas bottle connections (gas bottle fittings) and can be connected to an LPG gas bottle with either a POL gas bottle connections or an LCC27 new gas bottle connection (gas bottle fittings).
By following these simple steps and avoiding the use of an LCC27 adaptor (LCC27 to POL adaptor or POL to LCC27 adaptor), you can significantly reduce the risk of gas leaks and accidents while enjoying the convenience of your LPG gas barbecue or portable gas appliance.
Safety should always be your top priority when dealing with LPG gas.
More Safety Information on the LCC27 Gas Bottle Adapter (LCC27 to POL Adaptor)
Refer to the following for more safety information and guidance regarding LCC27 gas bottle adapter (LCC27 to POL adaptor or POL to LCC27 adaptor). They are both unsafe and illegal:
Safety Warning for Use of an LCC27 Gas Bottle Adapter
Summer safety warning for the use of an LP gas bottle adapter (WA Department of Energy, Mines, Industry Regulation and Safety)
LPG Cylinder Connection Guidance information
Transitional requirements for the implementation of the new LCC27 gas bottle connections (Gas Technical Regulators Committee)
LP gas bottle adapter on converting old POL to LCC27 new gas bottle connection, banned in Western Australia (WA Department of Energy, Mines, Industry Regulation and Safety)
Australian Standards
AS/NZS1596:2014 The storage and handling of LP Gas (Standards Australia)
Eric Hahn has over a decade of experience in the LPG industry and has become a key figure in shaping how LPG is marketed and communicated. As the creator of one of the world’s first LPG blogs, Eric has authored over 200 technical posts, helping educate and inform the industry and consumers.
Eric has served on multiple committees for Gas Energy Australia and the World LPG Association (WLPGA), contributing to important discussions and advancements within the global LPG sector. He has presented at WLPGA Annual Conferences, sharing his expertise as a speaker, panellist, and panel chair.
- BBQ – Gas and Charcoal BBQ Features – Charcoal BBQ vs Gas BBQ Comparison - March 31, 2025
- GPL Gas (GPL Fuel) – GLP Gas – LPG Gasul - March 26, 2025
- Think LPG When Building a New Home - February 26, 2025
Steve Reynolds
Technical Consultant
Steve Reynolds is a leading expert in the LPG industry with over 22 years of experience. As part of the national management team at ELGAS, Steve ensures the safe and efficient storage, handling, and transportation of LPG. He serves as the lead investigator for incidents and collaborates with authorities on industry developments.
Steve is a technical advisor to Standards Australia and Gas Energy Australia (GEA), and an active member of the World LPG Association (WLPGA), contributing to global standards and technical reviews. He holds a BSc. (Hons) in Industrial Chemistry from UNSW and has held senior safety and technical roles at ELGAS, making him a trusted authority in LPG safety and standards.