blatz... I am actually considering the micromatic 642-battery. Looks like a direct replacement for what I have.http://www.micromatic.com/draft-keg-beer/regulators-pid-642-Battery.html
leejoreilly... I haven't seen any rebuild kits for the brewlogic regulators that I have. When I called Midwest Supplies they did not offer-up rebuilding as an option. I will keep checking around though unless someone tells me otherwise.
Thanks for the replies thus far.