Products VentilatorRound Vent Back Ventilator 197-00883-00 Item Number :197-00883-00 *S.S. 5 “ Butterfly vent grills. *Made of S.S. 304. You May Also Be Interested In Ventilator 197-00883-00 Round Locker Vent Gtrills 956-03716-00 S Hook 956-04006-00 Vertical Windlass 756-97115-00