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.

Promax Underground Uplift Restraint Kit 1.9M Dia - Per 2500L (Pair)

Promax Underground Uplift Restraint Kit 1.9M Dia - Per 2500L (Pair)

POA

Promax Underground Uplift Restraint Kit 1.2M Dia - Per 1000L (Pair)

Promax Underground Uplift Restraint Kit 1.0M / 1.2M Dia - Per 1000L (Pair)

POA

XPRESS Underground Tank Adjustable Trafficable Riser Class D

XPRESS Underground Tank Adjustable Trafficable Riser Class D

$293.00

XPRESS Underground Tank Adjustable Trafficable Riser Class B

XPRESS Underground Tank Adjustable Trafficable Riser Class B

$264.00

Promax Stormwater Tank Fitting Kit

Promax Stormwater Tank Fitting Kit

$184.00

XPRESS Underground Tank Riser - 600 x 300mm

XPRESS Underground Tank Riser - 600 x 300mm

$264.00

Promax Underground Installation Anchor For 1.2 Dia (Pair)

Promax Underground Installation Anchor For 1.2 Dia (Pair)

$446.00

Promax Underground Tank Lid 600mm

Promax Underground Tank Lid 600mm

$328.00

Molasses Tank 30,000 Ltr - North Island

Molasses Tank 30,000 Ltr - North Island

$8,188.00

Molasses Tank 30,000 Ltr - South Island

Molasses Tank 30,000 Ltr - South Island

$8,188.00

Molasses Tank 25,000 Ltr - North Island

Molasses Tank 25,000 Ltr - North Island

$7,856.00

Molasses Tank 25,000 Ltr - South Island

Molasses Tank 25,000 Ltr - South Island

$7,856.00