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450mm Surface Chamber – ø225mm Twinwall Main Channel with optional 225mm Twinwall Side Inlets

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From: £292.62

Product Overview – 450mm Surface Chamber

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 has 225mm twinwall main channel with rocker pipe connections and two further optional 150mm twinwall side connections at 90°.

These have blind ends, that can be cut off for use on site, if required. Separate 150mm rocker pipes are available for side inlets, as well as adaptors, to offer 110/160mm EN 1401 side connections.


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

Additional information

Chamber Diameter


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