for pipes larger than 3 inches

ensuring a secure 24V furnace gas valve operation

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

Designed to interface seamlessly with the Selectra Series 14 modulation system

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

Grundfos 98126820 Pump 320819-301 for pipes larger than 3The 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