Best Sellers
Explore Tankworld’s best selling water tanks, featuring some of our most popular rainwater storage solutions for homes, farms and rural properties across Australia.
Selected from our complete water tank collection, these customer favourites are trusted for household supply, garden irrigation and agricultural water storage.
Why Our Best-Selling Water Tanks Are So Popular
Proven Sizes for Every Property
Popular capacities include 2,000L, 3,000L, 5,000L, 10,000L water tanks and 25,000L water tanks, covering everything from suburban homes to large rural properties.
Trusted by Australian Customers
These top-performing tanks are regularly chosen for whole-house rainwater systems, garden watering, livestock and irrigation applications.
Explore Related Capacity Ranges
Browse our compact tank options, mid-size storage tanks and large-capacity systems to find the right fit for your property.
Australian Made Since 1972
Tankworld rainwater tanks are manufactured from UV-stabilised polyethylene and engineered for long-term outdoor performance across New South Wales, Victoria and South Australia.
Featured Products
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Sale!
23,650L Round Corrugated Water Tank
From $2,795.00$3,385.00From $2,795.00$3,385.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $3,020.00$3,145.00 -
Sale!
10,000L Round Corrugated Water Tank
From $1,850.00$2,120.00From $1,850.00$2,120.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $2,010.00$2,120.00 -
Sale!
10,000L Round Straight Wall Tank (Zone 3 Only)
From $1,850.00$2,100.00From $1,850.00$2,100.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,850.00$2,110.00 -
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!
15,000L Round Corrugated Water Tank
From $2,075.00$3,350.00From $2,075.00$3,350.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $2,075.00$3,350.00 -
Sale!
2 x 23,650L Round Corrugated Tank
From $5,490.00$6,770.00From $5,490.00$6,770.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $5,940.00$6,770.00
All products
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Sale!
23,650L Round Corrugated Water Tank
From $2,795.00$3,385.00From $2,795.00$3,385.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $3,020.00$3,145.00 -
Sale!
25,000 Litre Round Corrugated Rainwater Tank (Zone 1 & 3 Only)
From $2,920.00$3,695.00From $2,920.00$3,695.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $2,895.00$3,045.00 -
Sale!
10,000L Round Corrugated Water Tank
From $1,850.00$2,120.00From $1,850.00$2,120.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $2,010.00$2,120.00 -
Sale!
5,000L Round Corrugated Tank (Zone 3 Only)
From $930.00$1,690.00From $930.00$1,690.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $930.00$1,690.00 -
Sale!
10,000L Round Straight Wall Tank (Zone 3 Only)
From $1,850.00$2,100.00From $1,850.00$2,100.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,850.00$2,110.00 -
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!
15,000L Round Corrugated Water Tank
From $2,075.00$3,350.00From $2,075.00$3,350.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $2,075.00$3,350.00 -
Sale!
1,000L Round Straight Wall Tank (Zone 3 Only)
From $495.00$800.00From $495.00$800.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $495.00$800.00 -
Sale!
45,400L Round Straight Wall Tank- Zone 1
From $5,795.00$7,700.00From $5,795.00$7,700.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $5,795.00$7,700.00 -
Sale!
30,000L Water Tank Round Straight Wall Tank Zone 2
From $3,840.00$5,150.00From $3,840.00$5,150.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $3,840.00$5,150.00 -
Sale!
5,000L Squat Tank (Zone 3 Only)
From $1,115.00$2,100.00From $1,115.00$2,100.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $1,115.00$2,100.00 -
Sale!
2 x 25,000L Round Corrugated Tank (Zone 1 & 3 Only)
From $5,740.00$6,900.00From $5,740.00$6,900.00Select options This product has multiple variants. The options may be chosen on the product pageFrom $5,690.00$6,900.00
