Auburn H4-12-12PK Gauge Glass Refrigerant Always verify the required orifice

Always verify the required orifice quantity and drill size in your heater's manual

We recommend retaining your existing hardware or utilizing standard self-tapping electrical panel screws for the installation

Is the C0 clearance standard for electric motors

Installing it on a lower-tonnage unit will lead to hunting and improper evaporator loading

Auburn H4-12-12PK Gauge Glass Refrigerant Always verify the required orificeThe Auburn H4 12 12PK Gauge Glass is a high performance borosilicate glass solution designed for critical fluid monitoring in industrial boilers and steam engines. This heavy duty sight glass features a 5 8" outer diameter (OD) and a 12 inch length, providing exceptional thermal shock resistance and durability under high pressure conditions. Each 12 pack contains high clarity tubes equipped with a distinct red line indicator, which uses optical