Abstract: A vacuum attachment for collecting animal feces comprising a container with at least a first exterior opening fitted with a disposable cap assembly, at least a second exterior opening fitted with a connector to allow connection to a source of suction or vacuum providing sufficient suction force at the opening of an intake tube capable of intaking animal feces, and at least one interior structure that prevents at least a portion of an air-permeable bag from contacting at least a portion of an interior surface of the container or from being drawn into or obstructing airflow through the connector, wherein the disposable cap assembly releasably fits into the first exterior opening of the container and includes the intake tube, a collar, a sealing ridge on a perimeter of the cap assembly, an air-permeable bag securely and substantially air-tightly affixed to the collar, and an attachment fitting that securely engages a slot in the container.