Ohio Medical Suction Regulator Unit Style 1251, Model PISA - Lot of 3 $499.99 Brand Ohio Medical Mode Intermittent Model 1251 MPN 1251 Intended Use/Discipline Dental Laboratory, Emergency Medicine, Endocrinology, Endodontics, Gastric, Chest Drainage condition Used Lot of 3Ohio Medical Suction Regulator Unit Style 1251, Model PISA 0-200 mmHg - Preowned Lens on one unit has scratches (Unit pictured to the right).30 Day Warranty from Date of Arrival