Polyacrylamide gels are usually run in a Vertical electrophoresis. These tanks are usually designed for protein separation. Also some DNA fragment with the length lower than 200 bp are separated by poly acryl amide gels in vertical electrophoresis. You can run by Denagene vertical electrophoresis up to 196 samples and this device has different models you can see some of them table. From small vertical double gel 10x10 electrophoresis to mega gel 22x50, all the ranges necessary for vertical format electrophoresis are produced by Denagene Company. Simple gel casting system with highly reasonable price have made the vertical tanks as best-selling models.