On Tue, 29 Sep 2009 14:12:11 -0700, stryped wrote:
On Sep 29, 2:19*pm, whit3rd wrote:

Most such boxes I've seen have threaded fittings; you can use a short
PVC molded pipe nipple threaded on both ends, OR the PVC conduit
with a threaded fitting (and the irritating diameter change). * Never
glue
the threads.

Why never glue the threads?

Because if you ever need to repair/replace anything, you'd have to cut out
the whole joint and do the whole schmear all over again.

Hope This Helps!
Rich