Temperature Sensor Mount. Used in older style Master Spas to secure the flow sensor to the spa. A new mount should always be installed when you are replacing your spa sensor unit.
This is a copper jumper strap normally used with the ground wires in the spa. These are mounted on the back of the pumps connecting the ground wire. Is part of the connections from the heater to the PC Board.
To match the unique style of your spa or hot tub, Master Spa Parts offers the 1-Inch Scallop Air Control (Grey). As a universal replacement part, this scalloped air control is designed to work with many brands of spas and hot tubs.