If your cover lifter screws directly into the back or sides of your hot tub cover, you'll need lifter plates built into your new cover. They provide the extra strength and support required to keep your cover secure and easy to manage — a small addition that makes a big difference. Own a Hot Springs, Caldera, or Tiger River spa? Lifter plates are a must. These brands require them to attach the cover lifter securely, ensuring proper alignment and smooth, hassle-free operation every time you use your spa. Side & Back Position: Lifter attachment point on the side and back edge of one panel. Compatible with most lifters. Plates are affixed only one panel of the cover and sits on the sides and back. One x 20” plate placed on each side where the fold is, set 12" from the back edge and two x 10” plates placed on the back side, set 13” from the middle of the cover. Side & HInge Position: Lifter attachment point on the side and hinge of one panel. Compatible with HotSpring Uprite and Lift ’N Glide lifters. Plates are affixed only to one panel of the cover and sit at the hinge and sides. This position is only compatible with HotSprings Uprite and Lift N’ Glide Lifters. Due to the complexity of this position, someone from our team will be reaching out for further details.