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 Tank Lid Screw Type 450mm

Promax Tank Lid Screw Type 450mm

$172.00

Promax Tank Lid Screw Type 350mm

Promax Tank Lid Screw Type 350mm

$172.00

Promax Tank Lid Screw Type 250mm

Promax Tank Lid Screw Type 250mm

$158.00

XPRESS Septic Tank 2,000 Ltr 1.2 Dia - South Island

XPRESS Septic Tank 2,000 Ltr 1.2 Dia - South Island

$2,856.00

XPRESS Septic Tank 3,000 Ltr 1.2 Dia - South Island

XPRESS Septic Tank 3,000 Ltr 1.2 Dia - South Island

$3,659.00

XPRESS Septic Tank 4,000 Ltr 1.2 Dia - South Island

XPRESS Septic Tank 4,000 Ltr 1.2 Dia - South Island

$4,194.00

XPRESS Septic Tank 5,000 Ltr 1.2 Dia - South Island

XPRESS Septic Tank 5,000 Ltr 1.2 Dia - South Island

$4,818.00

XPRESS Pump Chamber 1,300 Ltr

XPRESS Pump Chamber 1,300 Ltr

$1,361.00

XPRESS Underground Tank 1,000 Ltr 900mm Dia

XPRESS Underground Tank 1,000 Ltr 900mm Dia

$1,504.00

XPRESS Underground Tank 10,000 Ltr 1.2M Dia

XPRESS Underground Tank 10,000 Ltr 1.2M Dia

$6,859.00

XPRESS Underground Tank 9,000 Ltr 1.2M Dia

XPRESS Underground Tank 9,000 Ltr 1.2M Dia

$6,427.00

XPRESS Underground Tank 8,000 Ltr 1.2M Dia

XPRESS Underground Tank 8,000 Ltr 1.2M Dia

$5,986.00