Slimline Water Tanks
Slimline water tanks, also known as slimline rainwater tanks, are designed for narrow spaces and provide practical water storage for homes, garages and tight side areas.
Available from 330 litres to 5,000 litres, these space-saving tanks are ideal for urban properties and compact installations. You can also explore our broader range of rainwater tanks.
Why Choose Slimline Tanks?
Designed for Narrow Spaces
Slimline tanks maximise rainwater storage while using minimal space, fitting neatly along fences, walls and side access areas where traditional round tanks may not fit.
Popular Sizes from 330L to 5,000L
Popular options include 2,000L water tanks, 3,000L water tanks and 5,000L water tanks.
Ideal for Homes and Garden Use
These tanks are commonly used for garden irrigation, toilet and laundry supply, and small household rainwater systems.
Australian Made Since 1972
Tankworld slimline tanks are manufactured in Australia from UV-stabilised polyethylene and engineered for long-term outdoor performance. Each tank is backed by a 7-year manufacturer’s warranty.
Featured Products
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Sale!
2,000L Slimline SLR Water Tank
From $965.00$1,210.00From $965.00$1,210.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,040.00$1,260.00 -
Sale!
5,000L Slimline SLR Water Tank
From $1,840.00$2,430.00From $1,840.00$2,430.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,840.00$2,210.00 -
Sale!
3,000L Slimline SLR Water Tank
From $1,165.00$1,450.00From $1,165.00$1,450.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,235.00$1,450.00
All products
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Sale!
2,000L Slimline SLR Water Tank
From $965.00$1,210.00From $965.00$1,210.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,040.00$1,260.00 -
Sale!
5,000L Slimline SLR Water Tank
From $1,840.00$2,430.00From $1,840.00$2,430.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,840.00$2,210.00 -
Sale!
330L Slimline Water Tank
From $395.00$700.00From $395.00$700.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $395.00$700.00 -
Sale!
600L Slimline Water Tank
From $495.00$800.00From $495.00$800.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $550.00$800.00 -
Sale!
3,000L Slimline SLR Water Tank
From $1,165.00$1,450.00From $1,165.00$1,450.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,235.00$1,450.00 -
Sale!
1,575L Slimline Corrugated Water Tank – Zone 1
From $890.00$1,450.00From $890.00$1,450.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $970.00$1,450.00 -
Sale!
2,000L Slimline Corrugated Water Tank
From $1,270.00$1,500.00From $1,270.00$1,500.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,270.00$1,500.00 -
Sale!
1,100L Slimline – Poly Water Tank
From $705.00$1,150.00From $705.00$1,150.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $995.00$1,150.00 -
Sale!
2,500L Slimline Corrugated- Zone 1
From $1,270.00$1,550.00From $1,270.00$1,550.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,325.00$1,550.00 -
Sale!
2,100L Slimline Water Tank
From $1,335.00$1,500.00From $1,335.00$1,500.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,335.00$1,500.00 -
Sale!
1,600L Slimline
From $890.00$1,450.00From $890.00$1,450.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $970.00$1,450.00