Products VentilatorRound Vent Back Butterfly Vent 956-03706-00 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 Butterfly Vent 956-03704-00 Round Locker Vent Gtrills 956-03732-00 Solar Powered Extractor Ventilator 556-30002-00 STAY ADJUSTER PLATER 956-06918-00