Sigma Septic Tank

The advanced design of the Sigma Shallow Dig delivers a robust, impact resistant and durable tank

  • Less soil disposal and less backfill material – kinder to the environment
  • Reduced excavation costs, saving you money
  • CE marked to comply with Construction Products Regulations

Download our full brochure for more details

CodeCapacity (ltrs)No. of People (150 ltrs/head/day)DiameterLengthInvert Height
STH028280051225mm2955mm500mm
STH0383800121225mm3895mm500mm
STH0575700241425mm4275mm500mm
STH0717150341920mm3225mm500mm
STH0919150471920mm3960mm500mm
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