Text Box: The Pass-Through towers are available in two different sizes.  The 30" box on two 4" columns is available with 8, 9,10, 11 or 12 faucets.  The 40" box on two 4" columns is available with 12, 13, 14, 15 or 16 faucets.  A set-screw is used to prevent the screw-in shanks from being inadvertently loosened.