Ducted Air Conditioning Accessories - Grilles, Flexible Duct, Zone Controllers

CONTACT US NOW   Brisbane (07) 3219 1817, Sydney (02) 91 88 68 77 or email our friendly sales team  sales@lawsonair.com.au


A grille is a perforated cover for an air duct (used for heating, cooling, or ventilation, or a combination thereof). Grilles sometimes have louvers which allow the flow of air to be directed. The process of distributing heated or cooled air throughout your home should be a seamless process with the right grille or diffuser to ensure optimum airflow performance.


For large rooms, such as open plan offices, we usually suggest a four-way grill which provides balanced air-flow in four directions. These are usually placed centrally in a room and should easily be able reach every spot in a room that requires cooling or heating.

For smaller rooms there is a large range of discreet grilles. These are usually long and thin and blend into a room and can go completely unnoticed by guests. There are ideal for residential installations, offices and restaurants.


Grilles for ducted air conditioners come in all shapes and sizes and the decision of what grille to choose will come down to the performance you desire to achieve, ensuring that the grilles distribute the air gently and evenly around the room. This will avoid cold drafts or the system missing ‘hot-spots’ within the room. 

It is essential that airflows are calculated correctly so that the correct grilles and ducts can be used. Incorrectly specified ducts or grilles will result in insufficient circulation if too large or noisy units and whistling if too small. 

Choose from the following selection: 

Round grille allows for smooth quiet airflow that flows out in a concentric pattern across the ceiling, to provide good coverage in cooling and most heating applications. It is fully adjustable by rotating the centre cone from total shutoff to fully open.

Linear slot grille can be installed individually in set lengths or in a continuous line. They can also be installed in any type of ceiling application.

Linear bar grille is Extremely versatile and can be mounted in the wall, sill, floor or ceiling.


4 Way grille is ideal for use in all fixed/adjustable applications as the increased holding force maintains the louvres in the desired position even in strong air flow.

Double deflection bar grille is used to direct the air in a straight blow or spread the air as required by the room layout. If required, air can be directed at an angle to one or both sides, and still retain a near parallel air stream pattern.

Jet blower is used extensively in large areas and high ceiling applications such as Sports Centres, Airports, Entertainment Complexes, Shopping Centres and Industrial areas.



Bevel face grille is used in surface mount ceiling applications where minimum ceiling smudging is required.

Floor Register grille suits all ducted underfloor heating and cooling systems.

Return air eggcrate grille is normally used in ceiling return air and exhaust applications. Can be ceiling or wall mounted and is available with or without filter.

CONTACT US NOW   Brisbane (07) 3219 1817, Sydney (02) 91 88 68 77 or email our friendly sales team  sales@lawsonair.com.au


Ducts are conduits or passages used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. The needed airflows include, for example, supply air, return air, and exhaust air. Ducts commonly also deliver ventilation air as part of the supply air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort. Flexible duct is insulated and rated R1. 











Air Conditioners work to cool or warm your home, creating a comfortable living environment by filtering the air and removing the moisture which causes humidity. Zoning your new ducted air conditioning system will mean that everyone can enjoy their own temperature and airflow, and you can save on energy and running costs by turning off the airflow for rooms not in use.

Without zoning technology, a central air conditioning unit cools or heats the entire house, which means that every room receives the same airflow, regardless of room size, how many people are using (or not using) that room, the sun hitting one side of the house, or most importantly, everyone’s individual choices for the temperature. 

Zoning lets you have different volumes of conditioned air in different areas of your home, and lets you turn off air in areas you are not using. Zoning can help maximise energy efficiency and comfort by specifically targeting heating and cooling.


CONTACT US NOW   Brisbane (07) 3219 1817, Sydney (02) 91 88 68 77 or email our friendly sales team  sales@lawsonair.com.au