broken co2 regulator body

[ApolloSpeed]

I have a co2 double regulator system very similar to this

http://www.northernbrewer.com/shop/double-gas-regulator.html

one of the regulator bodies is not working right... northern wants $53 just for a replacement body
http://www.northernbrewer.com/shop/cornelius-regulator-body.html

Any better/cheaper options out there?

 

[day_trippr]

Can you get a rebuild kit for your regulator?

Cheers!

 

[ApolloSpeed]

maybe i don't know much about them, or the exact model regulator body i have.

I say it's broke, what is happening is the pressure slowly rises no matter where I have the regulator set at. after a few minutes it will trip the release valve. The other body seems just fine