larry Posted March 25, 2021 Share Posted March 25, 2021 So I picked up a load of ceiling vents from eBay. One box were 'outies' and one were 'innies'. It only makes sense from the photos! Is one for extract and one for supply or does it not matter? Thanks! Link to comment Share on other sites More sharing options...
ProDave Posted March 25, 2021 Share Posted March 25, 2021 Pic 1 is extract. Pic 2 is supply 1 Link to comment Share on other sites More sharing options...
larry Posted March 25, 2021 Author Share Posted March 25, 2021 Legend. Thanks for such a quick reply! Link to comment Share on other sites More sharing options...
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