We offers a wide range of stack-able packing designs. Commonly called VEE Packing. The sets are made of top and bottom adapters with pressure VEE rings in the middle, each set consisting of a number of VEE rings and the pressure rating of these sets is driven by the total configuration of materials. These are very popular in sealing rods and pistons. They can be used for low or high pressure applications and with single or double acting cylinders.