Stack Filters Triple layer mesh filters, to keep even the finest particulates out of your Carburetors with a quick fit rubber base. BBR custom makes stack filters for us to fit Weber and Solex carburetors.These filters are now on an order program and will take 10 days to 3 weeks to fill an order. Please Contact us at 928 255 28 24 or email at info@partsklassik.com