At Lower 48 we rely on Trumbull Manufacturing to help our technicians and customers stay safe while working on infrastructure.  We offer and use Trumbull’s polymer manhole lids, offering a variety of lids and frame assemblies up to 36”.  Trumbull uses quality hardware, in house molds which allows for traffic rating up to and exceeding 40,000 lbs load rating.  All lids are radio friendly, light weight and reduce theft due to scrapping!