A hatch of inspection pit that includes body with the upper, basic and bearing sections and cover with basic section which upper surface of the last one is arranged as plane, with relief, and side section. The body and cover are made of polymer composition. The cover is square, the upper and the basic sections of the body at outside are square. The outer dimensions of the sides of the body upper section correspond to the inner dimensions of the sides of the cover side section, overall (outer) dimensions of the main section of the hatch body correspond to the outer dimensions of the sides of the cover side section. The inner surface of the parts of the body is arranged as cylindrical, equipped with bearing bosses.
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