Spirovent Junior (VJS125) Air Eliminator, 1-1/4" Sweat

Spirovent Junior (VJS125) Air Eliminator, 1-1/4" Sweat

The VJS125 from Spirotherm is a Spirovent Junior Air Eliminator with 1-1/4” Sweat inlets. This item features a patented Spirotube coalescing component, which "filters out" the air from a hydronic or radiant heating system' fluid, allowing for improved performance and extending the lifespan of the heating system's components. It features an easy to install, in-line design, making it ideal for a large variety of residential and light commercial uses with pipe sizes ranging from 3/4" to 1-1/4". Also equipped with a 1/2" threaded tapping, which allows for easy connection of an expansion tank.

Technical Specifications:

  • Construction: solid brass construction;
  • Connections: 1-1/4" Sweat;
  • Max. operating pressure: 150 PSI;
  • Max. temperature: 270F;
  • Bottom tapping: 1/2" FNPT;
  • Flow at 4ft/sec. velocity: 15 GPM;
  • Weight: 3.5 lbs.


  • 20 year limited warranty by the manufacturer. 
Product Specs
Orientation Horizontal
Connections Sweat
Product Type Air Separators
Series Spirovent Jr
Size1 1-1/4"

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  • Views: 8883
  • Spirovent Junior (VJS125) Air Eliminator, 1-1/4" Sweat QR Code
  • Model: VJS125
  • MPN: VJS125TM
  • Availability: 20
  • $ 137.95


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Tags: VJS125, Spirotherm VJS125, Air Eliminators, Heating, Heating Supplies, Condensing Boilers, Heating and Cooling