Abstract: A feedthrough fitting for sealing around at least one conduit extending longitudinally through a cutout in wall at a transverse spacing from an inner surface of the cutout has an elastomeric one-piece seal having a pair of longitudinally oppositely directed faces, an outer surface corresponding generally to the inner surface, at least one longitudinally throughgoing passage extending between the faces and to the conduit, and at least one lateral split extending completely longitudinally between the faces and completely laterally from the passage to the outer surface. Thus the seal can be spread at the split to fit around the conduit. A respective end plate covers generally all of each of the faces and is formed of a plurality of separate sections together forming a hole corresponding to and longitudinally aligned with the passage.

Abstract: A feedthrough fitting seals around at least one conduit extending longitudinally through a wall opening forming two pairs of parallel inner side surfaces and forming longitudinally directed inner and outer peripheral surfaces. The fitting comprises a plurality of similar elastomeric liner blocks each extending the full width of the opening from one of the side surfaces thereof to the opposite parallel side surface thereof. Each block is formed with at least one interface surface directly engaging the interface surface of an adjacent block, at least one half seat on one of the interface surfaces complementary to the conduit and snugly engaging same, a nonplanar formation extending the full width of the opening on each of the interface surfaces and hermetically interfitting with the nonplanar formation of the adjacent block, and outwardly directed inner and outer lips that extend laterally past the respective opening and engage on the inner and outer peripheral surfaces.