Posts: 260
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Joined: Jul 2005
Someone sells them on eBay, or have a look in the classified section on this site.
If you just need one, and you can't find any other source, I might have a spare one I can give away for free.
Have a nice weekend! Klaus
Posts: 1,788
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Joined: Aug 2007
You can use EPDM sheet roofing rubber available at home supply stores (but you may gavce to buy a 1x12 foot piece). Also good hardware stores have rubber sheet gasket material in smaller sizes in the plumbing area.