4550 LT Polymaster BST Septic Tank



Product Documents

Polymaster ST4550 Septic Tank

Polymaster Septic Tanks are fully designed and manufactured in Australia, using only high quality Australian sourced materials. Build your reputation by using Australian made

  • 1665 H x 3520 L x 1640 W
  • 4550LT Capacity
  • Tested and Certified to AS/NZS 1546.1:2008
  • Lifting Lugs to Facilitate Placement
  • Large inspection opening
  • Totally New Design
  • Australian Made

Easy to Handle 

One-piece molded tank, and lifting lugs are incorporated into the design to make it easy to sling the tanks using crane, excavator or other lifting machinery


Pre-assembled before leaving the factory, to minimize the amount of work required on site. Simply position the tank and connect in and out flow pipes

Engineered Design 

The ribbed design for provides incredible strength and resistance to shape deformation. Extensive work and physical testing has ensured that Polymaster SEPTIC TANKS will be good indefinitely

Extremely Robust 

Manufactured from high quality industrial grade polyethylene, Polymaster SEPTIC TANKS are able to withstand the rigors of the real world. Knocks in transport, jolts and bangs during installation, ground and water pressure after… made tough to make it easy

Compact Design 

Designed to minimize the amount of digging required prior to installation. By utilizing a low profile design, the depth of excavation is minimized, and the hole is easier to backfill after installation.

Delivery Zones:

Sorry we don’t not offer delivery out of Zone 1 and Zone 2.



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Dimensions (mm)

1665H x 3520L x 1640W


7 Years Manufacturers Warranty

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