Amazon Civils 450mm Inspection Chamber Manhole Base, 4 Riser, SQ Cover & Frame

Inspection Chamber Manhole 450mm set. Raising Riser x 4, SQUARE Manhole Cover x 1. to manhole base and in subsequent riser-to-riser jointing. Underground Chamber 450mm Base 5 Inlets x 1. 450mm Inspection chambers can be installed.

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