This part is a "S" Style 4 5/16" Silver Spa Diverter Handle Knob only. This Diverter Knob has a S Shaped Top and mounts on top of the Diverter Valve Stem Square that is about 7/16" Wide sticking through the diverter cap. The Diverter Valve that this part fits is used to Divert Water into different sides of a hot tub and fits many different brands. The outside measurement of the Handle is about 4 5/16" from end to end and is about 2 1/8" wide from side to side. The Square hole where the stem mounts is about 7/16" wide. The list on this handle is $24.99. This Part is used in Many Brands of Hot Tubs With Graphite Colored Parts and can be used as an upgrade for Non-Buttress old style handles and cap. 

Note: This handle will not work with some old caps we suggest you choose the cap and handle upgrade set..

NOTE: This handle DOES NOT FIT Jacuzzi Premium, Sundance or Hot Springs tubs - PERIOD. Please make sure you measure properly.