Caleffi 535661HA PresCal™ Pressure Reducing Valve with Gauge (low lead, pre-adjustable), 1" Press Union Fitting Type_Tee Stop 10 Microns between 1

10 Microns between 1

1 % Flue Gas CO₂ calculation (calculated from O₂) Measuring Range: Display range 0 to CO₂ max Accuracy: ±0

it's the only gauge to use a Pirani sensor for greater accuracy and the ability to measure the entire vacuum process

The light-weight

Caleffi 535661HA PresCal™ Pressure Reducing Valve with Gauge (low lead, pre-adjustable), 1" Press Union Fitting Type_Tee Stop 10 Microns between 1Caleffi 535661HA PresCal Pressure Reducing Valve with Gauge (low lead, pre adjustable), 1" Press Union The Caleffi PresCal 535H pressure reducing valve is precision engineered to deliver accurate pressure regulation under varying pressure and draw conditions. Low internal pressure losses produce superior falloff performance enabling more flow capacity to fixtures. NSF ANSI CAN 61 compliance, superior 180F temperature rating, anti scale components and