Lennox 73M72 Extension Kit 322838-754 This HFES series valve (Model

This HFES series valve (Model HFES 20 HCA 5FT 7/8 x 1 1/8 ODF S/T) provides 20 tons of nominal capacity

ensuring long-term combustion safety interlock performance

Enhanced Durability: Equipped with ball bearings for reduced friction and extended service life in vertical or horizontal orientations

Once the AEGIS SGR-42-UKIT is secured

OEM Compatibility: Specifically designed for National Comfort Products 18

Lennox 73M72 Extension Kit 322838-754 This HFES series valve (ModelThe Lennox 73M72 is a critical Vertical Vent Extension Kit specifically engineered to modify the venting system on compatible high efficiency furnaces and SG 150 units. When standard flue runs aren't enough to clear building obstructions or meet local code for roof terminations, this OEM replacement part provides the necessary height for proper exhaust gas routing. For a tech in the field, this kit is essential for maintaining the correct 1 4 inch per