320mm Manhole Riser CD U354

Manhole risers are used to raise the height of the manhole from the base to the lid. The risers are compatible with the manhole bases and lids which when combined form the complete manhole. Manhole risers interlock and can be added / stacked to the height required.

• 320mm Diameter riser
• Compliant to relevant clauses of bs en13598-1:2010 and sewers for adoption, 7th edition
• Non-rusting design made from recycled material
• Supplied with joint seal
• Total depth can be up to 0.4m when used with matching cd u351 or cd u353 chamber base
• Compatible with T1G3, Clarkdrain 300, CD 300SR, Clarkdrain 352 & Clarkdrain 356 manhole covers
• Rise height is 190mm
• Total depth can be reduced by cutting the riser to required depth using a fine-tooth saw. 100mm reduction in height from the top of the riser is the maximum recommended.

Shipping Label: building supplies