Port plug?
 

I bought my box off a friend of mine. I have 2 12's in it now, it's the last box on this page:

http://www.carstereoworld.com/qlogic/qltype2box.html

In the description it mentions a "port plug" to go to a sealed sound. My friend doesn't have it, but I was wondering if there was a way I could make something I could put in the port to seal it? Aside from a board and poxying it in, I'd like something that I could put in and take out easily.

Could this work? Any ideas are appreciated. :]

You could use house styrofoam, and carpet it, thats what i use. Put a rope on the end to pull it out.

you could probably make a plug out of ridged insulation found at home depot, it is a pink styrofoam. you could cut out the port diameter and glue a few pieces together and then run a long through bolt with a washer on the inside end through it, so then you can pull it out.

a towel
that should tell you pretty quick wether you prefer that set up ported or sealed

elemental designs has them on their website.