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.
This 7.5' x 13' Swim Spa Cover for your H2X Therapool swim spa is a folding cover for your swim spa! This cover is extremely easy to operate and it makes taking on and off your swim spa cover easier than ever.