Accesso AIC450300B

Inspection chamber for use with 300mm twinwall systems


450mm internal diameter – Factory built inspection chambers, delivered to site as single piece units, ready to install, no assembly required.

All chambers feature a robust, impact resistant, rota moulded base. This model comes with a 300mm twinwall main channel with rocker pipe connections, which can be supplied with TWR300225 adaptors, to offer a 225mm main channel.

There are two optional 225mm twinwall side connections at 90  and both have blind ends, that can be cut off for use on site, if required. A wide range of adaptors to other pipework systems are available.


  • Main channel pipework – 300mm twinwall
  • Optional side inlets – 2 x 225mm twinwall

Depths available

  • 665mm
  • 995mm
  • 1505mm
  • 2020mm
  • 2320mm
  • 2960mm


    AIC450300B Product Drawing (DXF) – coming soon