It appears that JBL no longer stocks part number 20059 which is the cork gasket with self adhesive back that goes between the baffle and a 15" woofer. I've bought tons of these 4 piece sets over the years and now I'm told NONE, with no replacement number available.

Does anyone out there know of a replacement source. I'm looking for cork - not rubber - like the factory original cork gaskets. I tried Orange County and Madisound with no luck. I'm mid stream on two projects and need enough for 8 woofers.

Thanks