Rainwater Round Tank 31700ltr

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This popular large 31,700L rainwater tank is well suited to rural properties or large town blocks where you require plenty of water storage especially in combination with a second tank when rainwater is your main supply for household use. This certified rainwater tank is manufactured with strength in mind.

Polymaster will not be held liable for incorrect colour impressions, request your Polymaster colour sample to view colours. Polymaster tank colours represented match COLOURBOND steel colours.

*COLOURBOND® and colour names are registered trademarks of Blue Scope Steel Ltd™.

What makes Polymaster tanks the toughest?

  • Self-supporting roof design means no support poles are necessary
  • Extra thick corrugated walls for maximum strength
  • Double strength UV+ resin ensures ultimate protection against Australia’s harsh sun
  • One-piece construction with no joins, seams or part-lines
  • Certification to AS/NZ4766 tank standard
  • 22 COLORBOND® colours
  • 20 Year Warranty for peace of mind! *conditions apply

Australian Made

Quick Delivery

20 Years Warranty


Lifting Lugs

Moulded lugs for easy lifting and tie-down points.

Leaf Screen

400mm Mosquito Proof Leaf Screen


One piece construction, moulded with no joins, seams or part-lines down the walls. At no stage is the roof cut off and put back on.

Self Supporting Roof

The Self Supporting Roof Design eliminated the need for a centre support pole.

Ball Valve

Solid Brass Threaded outlet placed through wall with an approved 40mm ball valve.

Corrugated Wall

Corrugated Wall for Strength.


90mm Overflow fitting


Capacity: 31,700L (7000 gal)
Diameter: 4100mm
Inlet Height: 2610mm
Overall Height: 3040mm

To Order Your Accessories, Call Our Sales Team On 1800 062 064