The 8' x 17' Axis Swim Spa Cover is a hassle-free cover for your Michael Phelps swim spa! Made with high-tech rolling technology, this energy-efficient cover is effortless to operate, and it makes taking on and off your swim spa cover easier than ever. Available in dark gray Midnight.
Thumbscrew 1/4 - 20 x 1.75 inch. These are used to secure your corner skirting pieces on your spa in place. This part is the longer of the two thumb-screws available.