A lateral isolator comprising: a tubular housing comprising: an upstream end; a downstream end; and an interior circumferential shoulder comprising an interior shoulder surface , which has a shoulder profile ; an inner member comprising: a first tubular portion ; a second tubular portion ; and a pivot ring disposed within the housing , wherein the pivot ring is connected between the first tubular portion and the second tubular portion ; and wherein the pivot ring comprises a polygonal profile complimentary to the shoulder profile , the polygonal profile of the pivot ring and the shoulder profile of the housing being configured to provide torsional locking between the inner member and the housing ; a centralizer sub connected to the housing at the upstream end of the housing , the centralizer sub comprising a plurality of compliant fins attached to an outer surface of the centralizer sub and being spaced radially apart from each other about a longitudinal central axis of the lateral isolator ; a housing cap connected to the housing at the downstream end of the housing , the housing cap comprising a bowl profile configured to receive a guide neck of a movable sub , the guide neck having an outer profile complementary to the bowl profile ; a first elastomeric package disposed between the housing and the inner member , at a position longitudinally between the pivot ring and the housing cap ; and a second elastomeric package disposed between the housing and the inner member , at a position longitudinally between the pivot ring and the centralizer sub . a tubular housing comprising: an upstream end; a downstream end; and an interior circumferential shoulder comprising an interior shoulder surface , which has a shoulder profile ; an upstream end; a downstream end; and an interior circumferential shoulder comprising an interior shoulder surface , which has a shoulder profile ; an inner member comprising: a first tubular portion ; a second tubular portion ; and a pivot ring disposed within the housing , wherein the pivot ring is connected between the first tubular portion and the second tubular portion ; and wherein the pivot ring comprises a polygonal profile complimentary to the shoulder profile , the polygonal profile of the pivot ring and the shoulder profile of the housing being configured to provide torsional locking between the inner member and the housing ; a first tubular portion ; a second tubular portion ; and a pivot ring disposed within the housing , wherein the pivot ring is connected between the first tubular portion and the second tubular portion ; and wherein the pivot ring comprises a polygonal profile complimentary to the shoulder profile , the polygonal profile of the pivot ring and the shoulder profile of the housing being configured to provide torsional locking between the inner member and the housing ; a centralizer sub connected to the housing at the upstream end of the housing , the centralizer sub comprising a plurality of compliant fins attached to an outer surface of the centralizer sub and being spaced radially apart from each other about a longitudinal central axis of the lateral isolator ; a housing cap connected to the housing at the downstream end of the housing , the housing cap comprising a bowl profile configured to receive a guide neck of a movable sub , the guide neck having an outer profile complementary to the bowl profile ; a first elastomeric package disposed between the housing and the inner member , at a position longitudinally between the pivot ring and the housing cap ; and a second elastomeric package disposed between the housing and the inner member , at a position longitudinally between the pivot ring and the centralizer sub . <EOS>