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.
The 2 Inch Diverter Valve in Grey by Master Spas is a replacement for your home spa’s original diverter valve, the part of your spa that allows you to control jet water flow. This assembly kit comes with all of the pieces you need to install a new diverter valve in your spa.