This part is a common fit for FB4C and PF4M series units

this is a standard B-section industrial V-belt that fits all universal B-style pulleys and sheaves used in HVAC belt maintenance

The low-profile design and robust internal seals prevent the common dripping issues found in standard plastic alternatives

allowing you to match the protection curve to specific load types

The motor supports CW/CCW rotation (Clockwise/Counter-Clockwise)

Lennox 10M25 Service Valve 321894-706 This part is a commonThe Lennox 10M25 Service Valve is a high performance 7 8 refrigerant service valve engineered for precision control in residential and commercial HVAC systems. As a critical suction line service valve, the 10M25 features a robust brass body design that provides exceptional durability in high pressure environments. This SMV Series bar stock service valve is a genuine OEM replacement part (catalog number 10M25, formerly LEN100432 03) specifically