Viessmann 7826553 Gasket 322057-301 The Watts 0386450 S1156F is

The Watts 0386450 S1156F is a high-capacity boiler feed water pressure regulator designed for rigorous performance in residential and commercial hydronic heating systems

the gauge glass and protection rods must be sized and purchased separately based on your vessel's center-to-center dimensions

Using it with LP gas can lead to hazardous combustion issues

clogged 2-inch pleated filters

Exceeding this limit may damage the liquid-filled copper bulb and affect calibration accuracy

Viessmann 7826553 Gasket 322057-301 The Watts 0386450 S1156F isThe Viessmann 7826553 Gasket (Flue Gas) is an essential internal sealing component engineered specifically for high efficiency condensing boilers and heating systems. As a critical OEM replacement part, this 110mm gasket is designed to create an airtight, leak proof barrier within the flue exhaust system, preventing the migration of combustion gases into the mechanical room. Fabricated from high grade, heat resistant elastomer, it maintains structural