Robust Construction: Built to withstand high-pressure spikes and thermal cycling common in legacy R22 hardware

or if you see a diagnostic code indicating a pressure switch circuit error

Key Benefits High-Efficiency Performance: Delivers an 11

excessive dirt accumulation causing imbalance

Key Benefits Precise OEM Fit: Specifically balanced for 10

Resideo PV075S Eliminator 321042-401 Robust Construction: Built to withstandThe Resideo PV075S Eliminator is a high performance 3 4 inch sweat power vent designed for critical air management in hydronic heating systems. Engineered for efficient microbubble removal, this unit utilizes an internal stainless steel concentric coalescing medium to break surface tension and release trapped air from the system fluid. By maintaining a deaerated system, the PV075S prevents oxygen related corrosion and ensures optimal heat transfer