In looking at the foto above, your air cleaner filter is metal , the original filter was a fram paper filter that is no longer produced ..... I searched for months for a replacement filter and couldn't find one , so, I was force to purchase the new metal Westerbeke air filter for $429.00 ..... So, Jack what is the brand name & model # of that metal air filter on your W-30 , so furture owner of a W-30 diesel motor will know and not be sucker into buying that $429.00 from Westerbeke .....