Key Benefits Universal Compatibility: Works seamlessly with 2"

or if you notice a significant drop in humidity levels despite the unit running

this unit features a pressure range of 5-100 PSIG and a field-adjustable differential range of 3-12 PSI

Never increase the limit setpoint above the manufacturer's specification

it features a rugged housing and a balanced impeller to minimize vibration and operational noise

Armstrong Fluid Technology 805188-111 Flange Kit 321894-708 Key Benefits Universal Compatibility: WorksThe Armstrong Fluid Technology 805188 111 Flange Kit is a professional grade solution designed for seamless integration into high performance hydronic and HVAC systems. This 3 inch cast iron flange kit serves as the direct, modernized replacement for the legacy 105188 011 model, ensuring long term reliability and leak free operation. Engineered specifically for circulating pump installation, this kit is compatible with Armstrong Series E. 2 pumps,