The Maxitrol RV48L-3/4-48 Regulator is a specialized rubber seat poppet model engineered for high-precision pressure management in main burner and pilot load applications

and GNK125N20B3 natural gas furnaces

or when there is insufficient gas flow to the main burner

This item is the painted top panel only

which requires a replacement to prevent delayed ignition or "booming

Lochinvar & A.O. Smith 100166325 Pump 319852-301 The Maxitrol RV48L-3/4-48 Regulator isThe Lochinvar & A. O. Smith 100166325 Pump Less Volute is a heavy duty centrifugal circulator pump component engineered for high efficiency commercial water heating systems. This replacement pump motor and impeller assembly is designed for rapid integration into existing volutes, minimizing downtime during critical hydronic repairs. Built with a high torque motor and precision balanced impeller, it maintains optimal flow rates in Lochinvar Knight and