Updated Weekly

Current Manufacturing Lead Times

Plan your order with the latest estimated manufacturing lead times for key Promax product ranges. These timeframes are indicative and may change with product availability, order details and delivery requirements. Your confirmed dispatch timing will be advised after your order is reviewed.

Last updated Monday, 25 May 2026

North Island Manufactured in Kerikeri

South Island Manufactured in Rangiora

Lead Time Category

Water Tanks

Above-ground water storage ranges for homes, farms, builders and project supply.

Water Tanks estimated manufacturing lead times by product range
Product Range	North Island	South Island
ENDURO Above-Ground Tanks North Island: 10,000L - 30,000L; South Island: 25,000L - 30,000L	4 weeks / 20 working days	6 weeks / 30 working days
XPRESS Above-Ground Tanks North Island: 15,000L - 30,000L; South Island: 10,000L - 30,000L	4 weeks / 20 working days	6 weeks / 30 working days
Slimline Tanks	3 weeks / 15 working days	6 weeks / 30 working days
Small Above-Ground Tanks <5,000L	4 weeks / 20 working days	2 weeks / 10 working days
ENDURO 5,000L Low Profile Tanks 5,000L	4 weeks / 20 working days	–

Lead Time Category

Underground Tanks

Diameter-specific timeframes for buried storage, stormwater and wastewater tank ranges.

Underground Tanks estimated manufacturing lead times by product range
Product Range	North Island	South Island
ENDURO Underground Tanks 1.0 dia 4,000L & below	2 weeks / 10 working days	–
ENDURO Underground Tanks 1.0 dia 5,000L & above	5 weeks / 25 working days	–
XPRESS Underground Tanks 900 dia North Island: 1.2 dia unavailable; South Island: 1000L	2 weeks / 10 working days	1 week / 5 working days
XPRESS Underground Tanks 1.2 dia	–	2 weeks / 10 working days
XPRESS Underground Tanks 1.9 dia	On request	On request

Lead Time Category

Industrial Tanks

Indicative timeframes for engineered and project-specific tanks. Final timing depends on scope and specification.

Industrial Tanks estimated manufacturing lead times by product range
Product Range	North Island	South Island
Promax Industrial Tanks	8 weeks / 40 working days	7 weeks / 35 working days

Lead Time Category

Water Tanks

Above-ground water storage ranges for homes, farms, builders and project supply.

ENDURO Above-Ground Tanks

North Island: 10,000L - 30,000L; South Island: 25,000L - 30,000L

North Island: 4 weeks / 20 working days
South Island: 6 weeks / 30 working days

XPRESS Above-Ground Tanks

North Island: 15,000L - 30,000L; South Island: 10,000L - 30,000L

North Island: 4 weeks / 20 working days
South Island: 6 weeks / 30 working days

Slimline Tanks

North Island: 3 weeks / 15 working days
South Island: 6 weeks / 30 working days

Small Above-Ground Tanks

<5,000L

North Island: 4 weeks / 20 working days
South Island: 2 weeks / 10 working days

ENDURO 5,000L Low Profile Tanks

5,000L

North Island: 4 weeks / 20 working days
South Island: –

Lead Time Category

Underground Tanks

Diameter-specific timeframes for buried storage, stormwater and wastewater tank ranges.

ENDURO Underground Tanks 1.0 dia

4,000L & below

North Island: 2 weeks / 10 working days
South Island: –

ENDURO Underground Tanks 1.0 dia

5,000L & above

North Island: 5 weeks / 25 working days
South Island: –

XPRESS Underground Tanks 900 dia

North Island: 1.2 dia unavailable; South Island: 1000L

North Island: 2 weeks / 10 working days
South Island: 1 week / 5 working days

XPRESS Underground Tanks 1.2 dia

North Island: –
South Island: 2 weeks / 10 working days

XPRESS Underground Tanks 1.9 dia

North Island: On request
South Island: On request

Lead Time Category

Industrial Tanks

Indicative timeframes for engineered and project-specific tanks. Final timing depends on scope and specification.

Promax Industrial Tanks

North Island: 8 weeks / 40 working days
South Island: 7 weeks / 35 working days

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