STANDARD FIT GLASS BLOCK SHOWER WITH PROVANTAGE INSTALLATION SYSTEM   To install this project using the ProVantage II Installation System you will need: 1 - Standard Fit Shower Base, 60'' x 32'' (specify Left or Right Drain) (A) 27 - 8''x 8''x 4'' Glass Blocks (B) 10 - 8''x 8''x4'' EndBlock Finishing Units (C) 2 [...]