Goodman B1789878

Flow Check Piston Kit for Goodman B1789878 delivers precise flow measurement and reliable diagnostics for HVAC service. The Flow Check Piston Kit (20) includes twenty pistons designed to test refrigerant flow accurately across service cycles, helping technicians confirm system efficiency and prevent leaks.

Engineered for durability, the kit works with common compressor service tools and is compatible with Goodman systems.

• Pack of 20 pistons for comprehensive flow testing and repeatable results.
• Precise refrigerant flow checks to optimize cooling performance.
• Durable, corrosion-resistant construction for long service life.
• Easy installation with standard fittings, reducing maintenance time.
• Compatibility with Goodman B1789878 and related HVAC units, ideal as a replacement part.

Designed for quick integration into service workflows, this Flow Check Piston Kit reduces diagnostic guesswork by delivering repeatable measurements, helping technicians identify flow restrictions, improper charge, or valve issues. Use it during pre-season maintenance, system commissioning, or after refrigerant adds to verify performance before returning units to service. The compact kit travels easily in a technician's tool bag and stores neatly in a cabinet for ready access.