Dur-Red Products

Furnish where indicated on plans, Ladder Hatch, factory fabricated, Dur-Red Products Model No. LH, curb and curb frame and lid shall be 14 gauge galvanized steel, fully welded and ground smooth for absolute weather tightness; completely assembled with "heavy-duty" 3/16" galvanized pivot hinges; lid to have a fiberglass insulation, protected by a 22 gauge lid liner; inside, outside handles with padlocking provisions; "heavy-duty" air-flow pressure intensifier control; automatic hold-open and operating arms with red vinyl handle grip; and bulb-neoprene seal. (Also available in aluminum.)