I have a Pinnacle PN855 Model # 1010 Spa. Will this cover Lifter fit. The shell dimensions are 91" X 91"

Sharon Bunton
Hello Sharon, Per the manufacture specifications, the CoverMate II will "fit virtually any spa up to eight feet in width. (Narrow spas may require cutting the cross bars)." 8 feet is 96 inches, so it should fit your spa.