That absorber is NLA and Out of Production. There were two diff lengths: 40mm and 45mm. Both are gone, far as I can tell.
Either pay to play the ebay from KSA price or make yur own. A piece of small vac hose worked fine, but there's probably a more appropriate material out there if you want to take the time to look.
Actually, it's not. Plenty available in the US through normal dealer supply chain.