The Gas Spring lock is used to secure the Uprite Lifter in the open position attaching to only one gas shock. This part is typically left off when installing the Uprite Cover Lifter unless the spa is...
UMK Dimension One Spas Cover Mounting Kit, E-Z Lifter 3100-11 E-Z LifterIn one single motion (fig A, B, C) the E-Z Lifter lifts and stores the spacover, making cover removal