Choose the model Louvred vent polished SS 116x340 mm Louvred vent polished SS 115x127 mm Louvred vent polished SS 67x127 mm Louvred vent polished SS 128x232 mm Louvred vent polished SS 232x127 mm Louvred vent polished SS 76x152 mm Louvred vent polished SS 76x229 mm Louvred vent polished SS + fly screen 115x127 mm Louvred vent polished SS + fly screen 67x127 mm Louvred vent polished SS + fly screen 128x232 mm Louvred vent polished SS + fly screen 232x127 mm Louvred vent polished SS + fly screen 76x152 mm Louvred vent polished SS + fly screen 76x229 mm Louvred vent polished SS + fly screen 116x340 mm