400595-1 Kit - Tube Holder (12 Holders, 10 x 75) 10 x 75 tube holder kit. Contains 12 x 75 tube holders with inserts. Recommend replacing every 2 years. $502.79 Quantity Product Model Number Product Serial Number In order to purchase this item, please provide the product number and serial number of a compatible product. A table of compatible models and corresponding serial numbers can be found below.