Image Image Gallery Image Previous Next O-Ring Simriz 241 (High Penetrating Solvents) Part # 5663 This Extraction Vessel seal should be used when running high penetrating solvents like Diethyl Ether in your XT10/XT10I and XT15/XT15I. Price $252.00 Quantity Add to cart Product Documents Document O-Ring Installation (XTS017)