A device for maintaining a pneumatic conveyance line can include a body having one or more wings. In some examples, the body is configured to be positioned between opposing rails of a pneumatic conveyance track with the one or more wings positioned on a respective opposing rail of the track. The wings can carry one or more agents for at least one of cleaning and lubricating the track. As the device is pushed along the track, the device can clean and/or lubricate the track.