Buy Pre-Owned Aspirators and Suction Pumps from PRN Rents, llc. Since 1994, PRN Rents and Ardus Medical have supplied hospitals and alternate site healthcare organizations worldwide with high quality refurbished Suction Equipment at a savings of 30-80% versus the cost of new. All products are shipped to you patient-ready with up to a one year warranty, and are tested by factory-trained technicians in accordance with manufacturer specifications.