Extension Riser 450 X 235mm 110mm Underground D916

The floplast 450mm large inspection chamber riser and sealing ring allows you to extend the height of a large inspection chamber by 235mm to a maximum height of 1200mm with the standard frame and cover, and up to 3000mm using a 350mm reduced access frame and cover.

The floplast 450mm large inspection chamber riser and sealing ring allows you to extend the height of a large inspection chamber by 235mm to a