Universal Replacement: Directly replaces RV52-3/4-CSA and RV52-66 models without piping modifications

This specific model is optimized as a liquid line valve

This specific Lennox furnace replacement part features a high-reliability bimetal disc assembly that ensures rapid response times to airflow obstructions or blower failures

overcoming common ductwork restrictions

Designed to interface seamlessly with the Selectra Series 14 modulation system

Grundfos 98126820 Pump 320819-301 Universal Replacement: Directly replaces RV52-3/4-CSAThe Grundfos 98126820 MAGNA3 32 60 GF is a high efficiency 115 230V circulator pump engineered for modern hydronic systems requiring precise flow control. This model features a cast iron housing with a 6 1 2 inch port to port length, optimized for heating and cooling applications, including ground source heat pump systems and hot water recirculation. As a veteran grade ECM pump, it utilizes a permanent magnet motor to achieve an Energy Efficiency