Air filter for Precise hi speed spindle?

Got my newest E-Bay toy today and looking for some parts for it. It is a
Precise 15000 - 45000 RPM spindle with power supply set up in a jig bore
arrangement and dual labeled Rockwell / Precise. It looks almost brand
new. I am looking for a replacement air filter for it as the one that is
on it is getting to look dirty. Anyone have a clue where to find parts
for these things? Would like to find an 1/8" collet for it also.

Figured with the main spindle on Bridgett locked and the boring head
part of the jig borer set up with no offset this will make a killer
spindle for engraving with V-Carvz and routing & drilling printed
circuit boards. Who knows, I may even find some bores I want to grind!

Tim
[Denver, CO]