I have a Beseler 23c II XL and the largest size that I can print on this is 16x20 assuming that I use a 100mm standard enlarging lens for my 6x7 negatives. The enlarger will tilt 90 degrees to do wall projections for a larger blow-up. A couple of years ago, I got a Beseler 45 MX II enlarger for $17. If you are patient, there are bargains out there. I would suggest that you spend the money on the best quality enlarging lens that you can afford.