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 Round Transom Vent 956-03722-00 Ventilator,SS 556-11314-00 Deck Filler, Plastic 556-15051-00 Deck Mounting Bracket 256-36734-00