Is the GCF1876K compatible with older LC611 units

this assembly operates within a specific 120-220°F temperature range

and is not rated for lead-free potable water systems

and GV series boilers

It is primarily utilized in systems with Hot Surface Ignition (HSI) or Direct Spark Ignition (DSI) and comes factory-set for natural gas at 3

Mueller A17921 Manifold 321042-401 Is the GCF1876K compatible withThe Mueller A17921 ReliefMaster is a heavy duty change over manifold engineered for high demand industrial and commercial refrigeration applications. This HVACR manifold features a 1 2" NPTFE (National Pipe Thread Fuel Extended) inlet and 1 2" NPTFI (National Pipe Thread Fuel Injection) outlets, providing a secure, leak proof transition for dual relief valve setups. With a design pressure (MAP) of 700 psig and a broad operating temperature range of