this authentic OEM component calibrates the outlet pressure within the 3

maintaining balanced building pressure and indoor air quality

The McDonnell & Miller 328300

The set point is adjusted by removing the cover and turning the internal adjustment screw

is a high-pressure

Armstrong Fluid Technology 110223-329 Pump 320074-702 this authentic OEM component calibratesThe Armstrong Fluid Technology 110223 329 Pump, also known as the Model ASTRO 290SS, is a high performance stainless steel circulator pump engineered for efficiency in potable water systems and hydronic heating applications. Operating at 115Vac with a single phase motor, this three speed circulator provides versatile flow control, reaching a maximum flow rate of up to 52 GPM and 14. 2 feet of head. Its maintenance free design features a wet rotor with