Promax water tanks are built to last in tough NZ conditions. Our premium ENDURO range is engineered for strength, long life, and partial in-ground use. With a corrugated design, heavy-duty build, and 20-year warranty, it’s the industry benchmark. XPRESS tanks offer a smooth-sided, above-ground alternative at a lower cost. All tanks are made from high-grade polyethylene and certified to AS/NZS 4766. Trusted nationwide by rural, commercial, and residential customers.

ENDURO Super Duty Underground Tank 3,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 3,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 4,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 4,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 5,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 5,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 6,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 6,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 7,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 7,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 8,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 8,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 9,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 9,000 Ltr 1.0m - with TankGuard®️

POA

ENDURO Super Duty Underground Tank 10,000 Ltr 1.0m - with TankGuard®️

ENDURO Super Duty Underground Tank 10,000 Ltr 1.0m - with TankGuard®️

POA

XPRESS Industrial Tank 30,000 Ltr - South Island

XPRESS Industrial Tank 30,000 Ltr - South Island

POA

XPRESS Industrial Tank 25,000 Ltr - North Island

XPRESS Industrial Tank 25,000 Ltr - North Island

POA

XPRESS Industrial Tank 10,000 Ltr - South Island

XPRESS Industrial Tank 10,000 Ltr - South Island

POA

ENDURO Industrial Tank 25,000 Ltr - North Island

ENDURO Industrial Tank 25,000 Ltr - North Island

POA