Polydrain 320mm Diameter Inspection Chamber Riser
is backordered and will ship as soon as it is back in stock.
This riser is intended for use on the Polydrain 320mm Inspection Chambers.
Ribbed design increases product durability.
Polydrain 320mm inspection chamber complies with the following standards and building regulations:
BS EN 13598: 2010
Building Regulations Part H (Maximum invert depth of 0.6m)
Diameter - 320mm
Effective Height - 158mm
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