They are ideal for attaching ducting to a wall or box and commonly used on acoustic box fan.
Metal Ducting Wall Flange Spigot 4" to 12"
METAL Wall Flange Ducting Connector Fans Hydroponics 4" 5" 6" 8" 10" & 12"
METAL Wall Flange Ducting Connector Fans Hydroponics 4" 5" 6" 8" 10" 12"
Metal Ducting Reducers All Sizes Available
3" 4" 5" 6" 8" 10" 12" Metal Ducting Reducer Hydroponics Extractor Fan Flexible
Metal Ducting 90 Degree Bend 4" to 12"
