Need some help with Thiel CS3.5 crossovers


I started having some intermittent problems with my 3.5's, I decided to pull the woofers and take a look at the crossovers. Low and behold I had at least one blown cap in each crossover. I'm planning to recap them myself, but I'm no expert and I'm having trouble identifying one of the components in the crossover. In each group of caps there is a a small silver component. They appear to be labeled H15000 nohm 15000H. I'm attaching a link to a picture http://img.photobucket.com/albums/v682/zkellogg/image.jpg

If anyone could tell me what this little guy is I'd sure appreciate it.

On a side note, is there any reason to suspect or replace the resistors or coils while I have these guys out of the cabinets?

Thanks a ton!
chunkster
Chunkster...why not call Thiel and get them to help you identify and make recommendations on any other updates you want to make to the crossover. Gary Dayton (Customer Service) is excellent and very helpful with customer enquiries.
Gentlemen I took Cmalak and Unsound's advice and called Thiel. They are in fact 15pF polystyrene capacitors. They have offered to service the crossovers for me and I'm considering letting them do it for me. Unfortunately money is an issue (isn't it always). Thanks for the all the responses. I always get good information here.