Polydrain Civils Inspection Chambers (320mm or 450mm) can be used as an alternative to traditional manholes up to depths of 1.2 metres. The riser is connected to a separate chamber base with a push fit joint, fitted with a ring seal. All Polydrain manufactured products are made from non-porous smooth material. The excellent design of the flow profile prevents the buildup of deposits and blockages.
Meets requirements of EN 7158:2001
Plastic Underground Inspection Chamber
Polydrain 450 mm Inspection Cover - Sealing Ring
£1.09 (incl. VAT)
Purpose: Used to seal the joint between the 450 mm chamber and side riser, also any additional side risers. Fitting Tips: Depths of less than 1.2 metres can be achieved by cutting the riser between the ribbed sections. The riser is connected to a separate chamber base with a push fit joint, fitted with a ring seal. If another riser section is us...