Plate Locks polypropylene manhole cover

Polypropylene Wiser Riser manhole covers from Plate Locks Roadway Safety Products feature wedge-shaped spacers that bring the manhole cover to street grade. Interlocking spacers, available in 24-, 25- and 26-inch diameters, raise the cover level with inclined or uneven surfaces. The risers can be installed before or after repaving and imprinted with the type of utility below (sewer, water, storm drain). 541/821-3622;


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