Don't bother. Just remove the 5/16 compression fitting on the propex
(it's just threaded in) and replace with 3/8 (or 1/4 if that's your
preference)  flare fitting. No need to have any compression fittings.
Just make sure you put pipe dope or teflon tape (rated for propane) on
the replacement threaded fitting. You can get pipe dope (rated for
propane) and teflon tape (rated for gases) at Home Depot and Lowes'
also.

On Apr 28, 2005, at 12:32 AM, jimt wrote:

> I takes a bit of searching but you can find compression fittings to
> change
> to the common 3/8 line used by most US equip.  if I remember correctly
> last
> time I picked a 5/16 compression to a 3/8 flare at either home depot
> or ace
> hardware.