The McDonnell & Miller 310800 Gasket is a critical sealing component engineered specifically for the 21 Series and 221 Series float-operated water feeders

heat-stabilized material designed for the external housing of electric convection heaters

What is the difference between the H721LC and H-721LC

Whether you are performing a routine furnace service or a complex boiler repair

making it a staple for HVAC service kits and boiler repair applications across residential and commercial heating systems

Packard A65105 Fan Blade The McDonnell & Miller 310800The Packard A65105 is a high performance 10 inch aluminum fan blade engineered for precision in condenser and evaporator applications. Designed with a 5 blade configuration and a 20 degree pitch, this unit optimizes CFM output while maintaining structural integrity under high torque. It features a 1 4 inch hub bore with a CCW (Counter Clockwise) rotation as viewed from the discharge side. The intake side hub location ensures the air flow is directed