Abstract: A retainer arrangement exerts forces on a filter installed in a holder to increase the sealing pressure exerted by the filter against a holder flange on which the filter is seated when installed the arrangement, including a pair of substantially non stretchable but flexible retainer cables, each attached at either end to respective opposite holder sides at points located within the thickness of the air filter and of a length to enable drawing each cable around an outer edge of an air filter case and onto the surface thereof. An elastic stretch cord is connected at either end thereof to respective retainer cable extending over the surface of the filter at an intermediate point along the length thereof. The retainer cables are thereby tensioned and generate a reaction force acting on each filter perimeter edge contacted by a retainer cable, increasing the sealing pressure exerted by the filter on the holder flange on which it is seated.

Abstract: A retainer arrangement exerts forces on a filter installed in a holder to increase the sealing pressure exerted by the filter against a holder flange on which the filter is seated when installed the arrangement, including a pair of substantially non stretchable but flexible retainer cables, each attached at either end to respective opposite holder sides at points located within the thickness of the air filter and of a length to enable drawing each cable around an outer edge of an air filter case and onto the surface thereof. An elastic stretch cord is connected at either end thereof to respective retainer cable extending over the surface of the filter at an intermediate point along the length thereof. The retainer cables are thereby tensioned and generate a reaction force acting on each filter perimeter edge contacted by a retainer cable, increasing the sealing pressure exerted by the filter on the holder flange on which it is seated.