The Off-Grid Waste Range

Wastewater handled
off-grid, on-site.

GRAF Carat poly septic tanks for SmartShift builds with no sewer connection. Three capacities — 2700 L, 3750 L and 4800 L — all dual-chambered with internal baffle, telescopic lid, and AS/NZS 1546.1 compliant. 100% recycled polyethylene, lightweight enough to install without a crane, no concrete anchoring required.

5
Products available
Tanks · Toilets · Greywater
Full off-grid range
AS/NZS
Certified components
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Not sure which tank suits
your build?

Tell us how many people will live on site, your soil type and your build's water usage — we'll spec the right GRAF Carat tank and send a prompt, no-obligation quote.

No obligation
Prompt response
AS/NZS 1546.1 compliant
Free Perth metro delivery
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