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Jacobus Steam Vents

ONLY these Maid-O'-Mist Jacobus steam valves give you ALL these benefits!

A vent port size for every room, from the largest size for the coldest rooms to the smallest size for the “too hot” rooms. Easy to install on any radiator.

Jacobus Steam Vents

  • 16 Different Models
  • Self-Adjusting Thermostatic Control
  • Float to Prevent Water Escape
  • Reduces Radiator Noise
  • Cuts Fuel Consumption
  • Assures Even Heat Distribution
  • Lowers Operating Costs
  • Jacobus Steam Vent Model 1
  • Jacobus Steam Vent Model 4
  • Jacobus Steam Vent Model 5
  • Jacobus Steam Vent Model 6
  • Jacobus Steam Vent Model C
  • Jacobus Steam Vent Model D
  • Spec Sheet