I have a Freedom Breeder FB-CB708-2CMT rack. The tubs are 33" long x 27" wide and 8" tall.
I got the 11" heat panel option (belly heat). The tubs are solid colored with clear "windows" in the front. No, they are not PVC, but I love the FB/Design - especially with the less perforated lids and the solid tubs.
You can buy them by the level, at $125.00 per level.
http://www.freedombreeder.com/cage.php?cageID=25