43L21 | TURBULATOR ASSEMBLY | Lennox Product Type_Y75AA-3 The insert's robust design enables

The insert's robust design enables it to withstand high loads and stresses

It effectively prevents water leakage and ensures proper system operation

single-phase motor by Loren Cook

The flexible supply and return lines are insulated

43L21 | TURBULATOR ASSEMBLY | Lennox Product Type_Y75AA-3 The insert's robust design enablesTURBULATOR ASSEMBLY: Lennox 43L21 Lennox 43L21 Turbulator Assembly is a crucial component for optimizing the performance of your heating system. It's designed to enhance heat transfer within the furnace, resulting in improved efficiency and reduced energy consumption. The turbulator's unique design creates turbulence in the flue gas, increasing the surface area for heat exchange. This allows the heat to transfer more effectively from the combustion