Lennox 10M25 – Lennox Service Valve 7/8 Inch
The Lennox 10M25 service valve is a genuine Lennox OEM component designed for use in residential and light commercial HVAC systems. This 7/8 inch service valve is used on the suction line side of air conditioning and heat pump systems, providing a secure connection point for charging, evacuation, diagnostics, and routine system service. Manufactured to Lennox factory specifications, the 10M25 valve ensures proper refrigerant flow control and long-term reliability in demanding HVAC applications.
This Lennox service valve is commonly installed on outdoor condensing units and heat pump systems where precise refrigerant management is critical. Its durable brass construction is engineered to withstand high pressures, temperature fluctuations, and repeated service operations without leakage or performance degradation. Using an OEM Lennox service valve helps maintain system efficiency, protects the compressor, and supports proper system commissioning and maintenance.
The Lennox 10M25 7/8 inch service valve is a direct replacement for original factory-installed components and is compatible with a wide range of Lennox air conditioning and heat pump models. It is an essential part for HVAC technicians performing repairs, retrofits, or system replacements where OEM accuracy and fit are required.
Key features:
- Genuine Lennox OEM service valve
- Lennox part number 10M25
- 7/8 inch connection size
- Designed for suction line applications
- Heavy-duty brass construction for durability and leak resistance
- Supports refrigerant charging, evacuation, and system diagnostics
- Direct replacement for original Lennox service valves
Typical applications:
- Lennox air conditioners
- Lennox heat pumps
- Residential and light commercial HVAC systems
This Lennox 10M25 service valve is ideal for professional HVAC service and installation, ensuring proper system operation, long service life, and compliance with manufacturer specifications.


