High-Performance Air Filter, Grommet And Seal. All parts manufactured by XKs Unlimited. This kit will not show as being in stock but no worries; it is assembled from individual pieces when ordered. We've packaged our air cleaner grommet, our high performance air filter and a snorkel box seal into one convenient and money-saving package. Give your E-Type a breath of (well sealed) fresh air. For all Series I and II E-Types with the round filter.