2 1/2" NPT, 1 3/16" Insertion Length, 20 PSI Max Steam Pressure, Auto Reset Mechanical Low Water Cut Off for Steam Boilers (Part Number 155500)

Mechanical Water Feeder with Quick Hook Up Fittings for Steam and Hot Water Boilers with Cold Water Feed (Part Number 132700)

Replacement Cap for 47 Series Water Feeder

Mechanical Water Feeder with Quick Hook Up Fittings for Steam and Hot Water Boilers with Cold Water Feed and Low Water Cut Off with Two Snap Acting SPDT Switches (Part Number 132800)

Mechanical Water Feeder with Quick Hook Up Fittings for Steam and Hot Water Boilers with Cold Water Feed and Low Water Cut Off with Two Snap Acting Manual Reset SPDT Switches (Part Number 132900)