Balboa Air Controls by HydroAir (ITT), 10-2100BLK (BLACK COLOR) is a complete passive air intake valve or air control valve, used on spas, jetted tubs and whirlpool baths. Mounted spaside in a 1-3/4"" diameter hole, the white 2-5/8"" outer diameter crescent handle cap is opened to allow air to enter the spa jet and mix with the water. 1"" slip socket air line connection underneath. Includes gasket and lock nut for sealing up against the spa shell, tub or cabinet.
Replaces part numbers: 10-2100BLK, 10-2100-BL, 102100BLACK