3/4" Sweat, Spirovent Jr Air Eliminator


Brand: Spirotherm

Mfr Part#: VJS075

UPC#: 638559001232

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$80.95 / each
x4 $311.80 / box & Free Shipping
(4 x $77.95 / each)
  • Description
  • Literature
  • Reviews (2)
  • FAQs (1)

Spirovent Jr air eliminator model VJS075 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.


Spirovent Jr air eliminator 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".


Spirovent Jr model VJS075 is also equipped with a 1/2" threaded tapping, which allows for easy connection of an expansion tank.


Installation manual included.

Technical Specifications:

  • Construction: solid brass construction;
  • System connections: 3/4" sweat;
  • Bottom tapping: 1/2" FNPT;
  • Max. operating pressure: 150 psi;
  • Max. temperature: 270F;
  • Flow at 4ft/sec. velocity: 6 GPM;
  • Weight: 3.0 lbs.


20 year limited warranty by the manufacturer.
3/4" Sweat, Spirovent Jr Air Eliminator has an average 5.0 out of 5 rating based on 2 user reviews.
Nice quality product
By Momchil, Lic Plumber (from Sacramento,CA) on 8/16/2016
Sorry for the delay, but if is a real review I have to test it on the field. Installed it in Dec 2015 went this summer just for inspection. Still looks like brand new! No calcium build up, no water marks,just nice looking Gizmo
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Great Product
By Scott (from West Islip, NY) on 1/8/2013
Air was removed from my system in 5 mins and haven't heard air in system since. Should have installed these months ago!Great investment!
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Do these also work in an "OPEN" system, outdoor wood boiler install?
Read 1 answer
They do, although their efficiency will be decreased due to a continuous supply of oxygen-rich water. Air eliminators (unlike air vents and air scoops) are mainly designed to eliminate small bubbles from the system which cause corrosion of iron components. While they will vent out a lot of air even in an "open" system, they are more effective in "closed".
Answered on 1/31/2013 by PexUniverse Customer Service
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