Mazzei Venturi Injector [3/4" Barb, #684] (KYNAR-0684-K) productsunlimited The Sundance Spas PCB circuit

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

supports dependable debris capture

Raypak hi-limit shield

56FR configuration aids proper replacement matching

Helps restore electronic control function

Mazzei Venturi Injector [3/4" Barb, #684] (KYNAR-0684-K) productsunlimited The Sundance Spas PCB circuitThe 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