Sorry to revive this old thread, I just picked up a whirlpool WAR488 (4.4). Did my measurements and can fit my 5# tank, dual product regulator, my 5gal ball lock and a 3 gal ball lock. I'm not using a tower.. Using 2 pass through perlick taps on the side. They will be close to the top of the side panel, and as close to the front door as possible.
Do you think I will have any coolant lines there? I didn't think so as the element is on the back wall. But don't know.
Also, the first tap will drill in where the wall is still thin. However it flares out a little afterwards where the 2nd tap will drill through. Is a thicker section of side wall indicative of lines?
Cheers