This Inspection Chamber Manhole Cover from the Clark Drain range is designed to fit a clear opening of 450mm. It includes a solid top constructed from black polypropylene and dual locking. You can screw the cover to the frame, which you then screw to the chamber top. Features &... Read More
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This Inspection Chamber Manhole Cover from the Clark Drain range is designed to fit a clear opening of 450mm. It includes a solid top constructed from black polypropylene and dual locking. You can screw the cover to the frame, which you then screw to the chamber top.
Question:
I need a lid for a manhole riser that is 460mm internal diameter, would this manhole cover fit onto our existing riser?
Answer:
Hi, the dimensions of this inspection chamber are 450mm diameter internally, and 550mm externally.
Question:
I need three replacement lids, but they must have a diameter of no greater than 490mm. Would you be able to confirm the diameter measurement of the lid only please? Thanks.
Answer:
The Clark Drain Inspection Chamber Manhole Cover has an external diameter of 550mm. The internal diameter, or the clear opening that the cover fits into, is 450mm. Therefore, if you need a cover with a diameter of no greater than 490mm, this product may not be suitable. You might want to consider other products within our range that could meet your specific requirements. If you need further assistance, please do not hesitate to reach out to our customer service team. For more technical details about this product, you can refer to the Technical Information document.
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