Speciality Products

We have many product ranges suitable for project specifying, including Air Change, DuctSox, Acutherm, Gripple, Kilargo, Nailor, VENTS and Polyaire. We also have design teams in both Auckland and Christchurch to help you with your quoting and tendering, design and costings.



Heat Exchangers

Air Change New Zealand


Air Change manufactures patent protected sensible and enthalpy air-to-air heat exchangers, and a range of HVAC products incorporating the Heat exchange technology.

The company aims to improve indoor air quality using a sustainable approach. Since 2001, a comprehensive range of energy efficient packages HVAC products have been developed and commercialised. The heat exchangers are designed to reduce air conditioning loads through the pre-conditioning of incoming air prior to entering the refrigeration system. The Air Change units have been well received by industry, due to the simplicity of combining indoor air quality and energy efficiency, all in one packaged unit.



Fabric Duct-Diffusers

DuctSox Air Dispersion Systems discharge air through a combination of porous fabrics, engineered orifices, and linear vents. Contact us for more information.

DuctSox Technical details

DuctSox Engineering and Design Manual 2014

DuctSox New Zealand



VAV Diffusers

Acutherm New Zealand

Acutherm Australia





Duct hanger Systems

Gripple New Zealand




Intumescent Fire Dampers


Nailor Industriesnailor

Commercial Grilles, Diffusers and Air Distribution Products







The VENTS company was founded in the 1990s. VENTS has experienced exceptional growth and is now a leading world wide manufacturer of domestic and commercial ventilation products

VENTS is a powerful research and development enterprise with about 2000 specialised employees working as a single team to ensure a full production cycle from idea to end product.

The production base of the company covers more than 60,000 m2. It includes 12 workshops equipped under international standards. Each workshop is comparable to a separate plant. State-of-the-art technology, leading-edge innovations and high automation has made VENTS a world leader in the ventilation industry, confirmed by numerous national and international prizes and awards for the innovative quality products.

VENTS is ISO9001 accredited and the quality of their processes is confirmed by gaining the international quality sign TUV Germany and the CE sign of compliance for European norms.




Polyaire is Australia’s leading manufacturer and distributor of Air Conditioning products and components.

Established in 1973, Polyaire now has 13 branches in Australia, offices in Malaysia and the United Kingdom and exports worldwide. Polyaire has one of the most extensive ranges of products used in the air conditioning industry, offering thousands of different items marketed under the Polyaire, Zonemaster and Derby brands.

With its Head Office and manufacturing in Adelaide and 13 branch offices throughout Australia, Polyaire offers a comprehensive range of Air Conditioning components.

Continuous investment in new equipment and innovative product design and development programmes have resulted in growth locally and internationally.

Polyaire’s products comply with all current Australian and International standards.