Our Range
Compare Our Septic Tank Range
Three-chamber polyethylene septic tanks sized for everything from tiny homes to larger rural dwellings. Supply-only with pickup across NSW, QLD and VIC.
Most Popular
1,500 Litres
1500L Septic Tank
Compact three-chamber poly tank for tiny homes, granny flats and small dwellings.
Best for
1–4 bedroom small dwellings
- 2,030 × 1,110 × 1,120 mm
- 61 kg empty — easy to handle
- 5.3 mm ribbed wall thickness
From $949 AUD (exc GST)
View Details
Larger Capacity
2,500 Litres
2500L Septic Tank
Higher-capacity three-chamber poly tank for larger homes and multi-bedroom builds.
Best for
Larger family homes & acreage
- 2,750 × 1,210 × 1,180 mm
- Higher daily flow capacity
- Three-chamber poly construction
From $1,790 AUD (exc GST)
View Details1500L vs 2500L — At a Glance
Same proven three-chamber poly design, two sizes for two different builds.
| Spec | 1500L Tank | 2500L Tank |
|---|---|---|
| Capacity | 1,500 litres | 2,500 litres |
| Dimensions (L × W × H) | 2,030 × 1,110 × 1,120 mm | 2,750 × 1,210 × 1,180 mm |
| Weight (empty) | 61 kg | Approx. 110 kg |
| Chambers | 3 | 3 |
| Material | Ribbed polyethylene | Ribbed polyethylene |
| Best for | Tiny homes, granny flats, 1–3 BR dwellings | 4+ BR homes, acreage, larger families |
| Price from (exc GST) | $949 AUD | $1,790 AUD |
2500L weight is approximate — contact us for the latest supplier spec sheet.
Not Sure Which Tank You Need?
Tank size depends on the number of bedrooms and daily wastewater flow. Use our sizing guides or get in touch and we'll help you choose.