Products VentilatorRound Vent Back Butterfly Vent 956-03705-00 BUTTERFLY VENT STAMPED AISI 304 ITEM NO. Dia mm Weight/g 956-03705-00 100 (4") 69 956-03706-00 125 (5") 100 You May Also Be Interested In Ventilator 197-00883-00 Round Transom Vent 956-03722-00 DJ Hook (Wire Hook) 397-DJ5012 Cap With Thread 956-09974-R