About GRAF Australia

Engineering water for every Australian site

More than 60 years of German plastics engineering - rainwater harvesting, stormwater management and wastewater treatment, built to last in Australian conditions.

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GRAF Australia

Pure, clean water - protected at every step

GRAF Australia provides sustainable solutions to not only capture and preserve our precious water, but actively treat it from contaminants. We specialise in rainwater harvesting, stormwater management, septic systems, trade waste and grease management, and water treatment.

We combine the knowledge and legacy of the Otto Graf GmbH Group and their 60-year history with local manufacturing and application expertise across Australia - designed for storm and flooding events, drought and water scarcity, wastewater treatment and recycling, contaminant filtration and the collection of micro-plastics.

GRAF Australia acknowledges the Traditional Owners of Country throughout Australia, and pays our respects to Elders past, present and emerging.

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Mission & values

Clean water for now and the future - how we design, manufacture and specify for Australian conditions.

Our team

Sales, technical, operations and support - people first, water specialists second.

Sustainability

Recycled plastics, carbon-neutral ambitions for Henderson WA, and water as our core business.

Germany HQ

60+ years of Otto Graf GmbH - from Teningen to 80+ export markets and 700+ people worldwide.

Careers

Join GRAF Australia or explore group opportunities with Otto Graf GmbH.

Accessibility

We aim to make this website usable for everyone - tell us where we can improve.

GRAF engineers solutions for

Built for Australian conditions

Quality you can trust

GRAF products are manufactured to meet ISO 9001, ISO 50001 as well as AS/NZS 1546.1, and AS/NZS 4766. With independent audits, you can rely on high standards and high quality.

Proudly Australian made

Our rotomoulded products are manufactured here in Western Australia, with strict production control and quality management, promoting Australian jobs and positively contributing to the Australian economy.

Eco-friendly

Sustainability is at our core. From utilising recycled plastics to ensuring products stand the test of time, GRAF is always striving for a more sustainable and carbon-neutral future.

The family

Seven brands, one water platform

GRAF

Rainwater harvesting and stormwater management - underground tanks, filters and detention systems engineered from recycled plastics.

GARANTIA

Above-ground and underground tank platforms for residential and commercial rainwater storage.

KLARO

Wastewater treatment plants and grease separators for homes, commercial kitchens and remote sites.

HAURATON

Surface drainage channels, grates and access covers for civil and landscape projects.

3P Technik

Hydroshark sedimentation and Hydrosystem filtration for decentralised stormwater and rainwater treatment.

BIOROTOR

Modular rotating biological contactor wastewater treatment for residential, commercial and industrial sites.

HUESKER

Geogrids, geotextiles and geocomposites for civil engineering, roads and earthworks reinforcement.

Our heritage

Engineering the future, built on decades of history

1962
Otto Graf GmbH founded
Otto F. Graf and Elfriede Graf found Otto Graf GmbH in Germany. The early business sold plastic containers and drums for fruit and wine growing, then industrial tanks.
1974
First GRAF rainwater butts
Market launch of the first GRAF water butts under the idea that “rainwater is free” - the foundation of today’s rainwater harvesting range.
1978
Underground rainwater tanks
Plastic underground rainwater tanks open a new product segment. The French subsidiary relocates to Dachstein (Alsace) and starts rotational moulding.
1997-2001
Herkules, infiltration & wastewater
Herkules tank logistics innovation, first-generation percolation blocks for infiltration and retention, then fully biological wastewater treatment systems.
2007-2008
Carat S and Australia
Launch of the Carat S underground tank supports global export growth. Sales branches are founded in Australia and the United Kingdom.
2014
KLARO joins the group
After more than a decade of partnership, Otto Graf GmbH takes over Klaro GmbH - consolidating decentralised sewage expertise within the GRAF Group.
2017-2022
Global growth & 60 years
GRAF Polska, the Herbolzheim Competence Center Raw Materials, the Neuried factory and further international subsidiaries expand recycling and manufacturing. Otto Graf GmbH marks its 60th anniversary in 2022.
Today - Australia
GRAF Australia
Part of the GRAF Group of more than 700 people worldwide, GRAF Australia manufactures rotomoulded products in Western Australia and specifies German-engineered rainwater, stormwater and wastewater systems for Australian sites.