Air Filter, suits Echo models SKU: B1EC91 Please log in to see price or purchase this item DetailsFits ES, HCA, PAS, PB, PE, SRM and ST models.Details3-7/64" (78mm) L x 3-1/16" (76mm) W x 5/16" (8mm) HDetailsEcho 130310-51830Cross ReferenceBRF6897