FIELD: technology of water and air purification.
SUBSTANCE: invention is intended for air cleaning. Serviceable filter cartridges are described. Cartridge (415) comprises seal assembly (420) having radially directed sealing surface (445a) with at least a first section, non-corrugated or without protrusions/recesses, and a second section, wavy or with protrusions/recesses.
EFFECT: preventing installation of an inadequate cartridge into the air cleaner housing during servicing.
54 cl, 106 dwg
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