Mazzei Venturi Injector [3/4" Barb, #684] (KYNAR-0684-K) productsunlimited The gray scalloped face helps

The gray scalloped face helps this Waterway internal blend well across a wide range of shell and trim colors

Helps restore electronic control function

and all identifying details with the part currently installed

The Sundance Spas PCB circuit board is designed for compatible spa control applications where the main board needs to be replaced to restore system operation

Mazzei Venturi Injector [3/4" Barb, #684] (KYNAR-0684-K) productsunlimited The gray scalloped face helpsThe Mazzei venturi injector is designed for compatible ozone and chemical injection applications where a barb connected venturi device is needed. A venturi injector is useful because it helps draw ozone or other treatment media into the water stream, supporting more dependable mixing and treatment performance. This replacement is especially useful when the original injector is clogged, cracked, damaged, worn, or no longer drawing correctly. Matching