Maid O' Mist Air Valves

Jacobus Air Valves are also referred to as Maid O' Mist Air Valves. They are designed for use in steam heating systems. There are many models of Jacobus Air Valves available on our website.

20 products shown

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  • #1, 3/4" x 1/2" Main Vent Valve View Specs
    • SKU: J1
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (808 Avail)

    $14.55 / each

    $136.50 / box
    10 x $13.65

     
  • #4, 1/8" Angle Air Valve View Specs
    • SKU: J4
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (1427 Avail)

    $7.15 / each

    $75.00 / box
    12 x $6.25

     
  • #5, 1/8" Angle Air Valve View Specs
    • SKU: J5
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (1412 Avail)

    $7.15 / each

    $76.20 / box
    12 x $6.35

     
  • #6, 1/8" Angle Air Valve View Specs
    • SKU: J6
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (1646 Avail)

    $7.15 / each

    $76.20 / box
    12 x $6.35

     
  • #C 1/8" Angle Air Valve View Specs
    • SKU: JC
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (1759 Avail)

    $7.15 / each

    $76.20 / box
    12 x $6.35

     
  • #D 1/8" Angle Air Valve View Specs
    • SKU: JD
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (1995 Avail)

    $7.15 / each

    $76.20 / box
    12 x $6.35

     
  • #4, 1/8" Straight Air Valve View Specs
    • SKU: J4S8
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (157 Avail)

    $7.79 / each

    $83.40 / box
    12 x $6.95

     
  • #5, 1/8" Straight Air Valve View Specs
    • SKU: J5S8
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (244 Avail)

    $7.79 / each

    $83.40 / box
    12 x $6.95

     
  • #6, 1/8" Straight Air Valve View Specs
    • SKU: J6S8
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (62 Avail)

    $7.79 / each

    $83.40 / box
    12 x $6.95

     
  • #C, 1/8" Straight Air Valve View Specs
    • SKU: JCS8
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (244 Avail)

    $7.79 / each

    $83.40 / box
    12 x $6.95

     
  • #D, 1/8" Straight Air Valve View Specs
    • SKU: JDS8
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (230 Avail)

    $7.79 / each

    $83.40 / box
    12 x $6.95

     
  • #4, 1/4" Straight Air Valve View Specs
    • SKU: J4S4
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (50 Avail)

    $7.99 / each

    $85.80 / box
    12 x $7.15

     
  • #5, 1/4" Straight Air Valve View Specs
    • SKU: J5S4
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (28 Avail)

    $7.99 / each

    $85.80 / box
    12 x $7.15

     
  • #6, 1/4" Straight Air Valve View Specs
    • SKU: J6S4
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (224 Avail)

    $7.99 / each

    $85.80 / box
    12 x $7.15

     
  • #C, 1/4" Straight Air Valve View Specs
    • SKU: JCS4
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (115 Avail)

    $7.99 / each

    $85.80 / box
    12 x $7.15

     
  • #D, 1/4" Straight Air Valve View Specs
    • SKU: JDS4
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (113 Avail)

    $7.99 / each

    $85.80 / box
    12 x $7.15

     
  • #7, 1/8" Straight Auto Vent View Specs
    • SKU: 7
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (117 Avail)

    $20.95 / each

    $99.75 / box
    5 x $19.95

     
  • #9AS Shortstop Automatic Shutoff Valve View Specs
    • SKU: 9AS
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (95 Avail)

    $4.15 / each

    $39.50 / box
    10 x $3.95

     
  • #67, 1/8" Auto-Vent View Specs
    • SKU: MO67
    • Brand: Jacobus - Maid O Mist
    In Stock!
    Ships in 24-48 Hrs (6029 Avail)

    $9.49 / each

    $89.50 / box
    10 x $8.95

     
  • #68, 1/4" Auto-Vent View Specs
    • SKU: MO68
    • Brand: Jacobus - Maid O Mist
    Out of Stock
    Allow 7-10 Days to Ship Out

    $11.15 / each

     
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