This Navien Syphon and Hose Assembly is a crucial component designed for use with Navien's NCB series of condensing gas combination boilers. The assembly is engineered to facilitate the removal of condensate, a byproduct of the combustion process within the boiler. The syphon component serves as a trap, preventing potentially harmful gases from re-entering the system, while the hose ensures efficient drainage of the condensate away from the unit. This product is constructed from high-quality materials to ensure durability and reliable performance. It is designed for easy installation and direct compatibility with Navien NCB series boilers.