Products VentilatorRound Vent Back Butterfly Vent 956-03704-00 BUTTERFLY VENT STAMPED AISI 304 ITEM NO. Dia mm Weight/g 956-03704-00 100 (4") 73 956-03703-00 125 (5") 67 You May Also Be Interested In Ventilator 197-00882-00 Ventilator 256-03710-00 Four Claw Anchor 589-00407-00 Chain Claw 956-02300-00