Products VentilatorRound Vent Back Ventilator 197-00882-00 Item Number :197-00882-00 *S.S. 5 “ Dia. You May Also Be Interested In Ventilator 197-00883-00 Ventilator,SS 556-11314-00 Pull Ring 197-00610-00 90° Round Base 156-66039-00