https://www.chromatographyspares.com/component/virtuemart/vacuum-parts/rebuild-kits-blades-gaskets-orings-vacum-parts/rietchle-rebuild-kits-vacuum-parts/464-kit,filter,exhaust-vca-e-25-696-697-698-detail?Itemid=0
Rietchle : 313658 Filter, Exhaust, Cast Aluminum, VCA/E25 - Supplies Online | Chromatography Parts...
cast aluminum