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  • 1/8" Hy-Vent Product Image
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    1/8" Hy-Vent 400-4 1/8" Hy-Vent
    SKU: 400-4
    Brand: Taco
    (86)
    $10.36 each
    1,289
    Thu, Apr 29
    21,384
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    1,289 Thu, Apr 29
    20,095 Mon, May 3 – Tue, May 4
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  • 1/8" SlimLine Hy-Vent Product Image
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    1/8" SlimLine Hy-Vent 416-2 1/8" SlimLine Hy-Vent
    SKU: 416-2
    Brand: Taco
    (7)
    $8.56 each
      Box Up & Save 4%  
    $114.66 box of 14
    $8.19 each
    328
    Thu, Apr 29
    1,761
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    328 Thu, Apr 29
    1,433 Mon, May 3 – Tue, May 4
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  • #67, 1/8" Auto-Vent Product Image
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    #67, 1/8" Auto-Vent MO67 #67, 1/8" Auto-Vent
    SKU: MO67
    Brand: Jacobus - Maid O Mist
    (20)
    $9.29 each
    350
    Thu, Apr 29
    5,551
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    350 Thu, Apr 29
    5,201 Mon, May 3 – Tue, May 4
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  • 1/8" MPS Float Air Vent Product Image
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    1/8" MPS Float Air Vent 700-30 1/8" MPS Float Air Vent
    SKU: 700-30
    Brand: Amtrol
    (10)
    $9.00 each
      Box Up & Save 7%  
    $200.64 box of 24
    $8.36 each
    171
    Thu, Apr 29
    171
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    171 Thu, Apr 29
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  • 1/2" NPT MINICAL Auto Air Vent w/ Safety Cap Product Image
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    1/2" NPT MINICAL Auto Air Vent w/ Safety Cap 502043A 1/2" NPT MINICAL Auto Air Vent w/ Safety Cap
    SKU: 502043A
    Brand: Caleffi
    (11)
    $10.45 each
    249
    Thu, Apr 29
    291
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    249 Thu, Apr 29
    42 Mon, May 3 – Tue, May 4
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  • Varivalve Adjustable Angle Air Valve Product Image
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    Varivalve Adjustable Angle Air Valve VAAV Varivalve Adjustable Angle Air Valve
    SKU: VAAV
    Brand: Varivalve
    (67)
    $21.89 each
    53
    Thu, Apr 29
    53
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    53 Thu, Apr 29
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  • 1A, 1/8" Adj. Angle Steam Radiator Air Valve Product Image
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    1A, 1/8" Adj. Angle Steam Radiator Air Valve 401422 1A, 1/8" Adj. Angle Steam Radiator Air Valve
    SKU: 401422
    Brand: Hoffman
    (106)
    $33.54 each
    170
    Thu, Apr 29
    3,459
    QtyArrives
    170 Thu, Apr 29
    3,289 Mon, May 3 – Tue, May 4
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  • 40, 1/8" Angle Steam Radiator Air Valve Product Image
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    40, 1/8" Angle Steam Radiator Air Valve 401440 40, 1/8" Angle Steam Radiator Air Valve
    SKU: 401440
    Brand: Hoffman
    (47)
    $20.20 each
    197
    Thu, Apr 29
    20,871
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    197 Thu, Apr 29
    20,674 Mon, May 3 – Tue, May 4
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  • 1/8" Combination Coin/Key Air Valve (Nickel Plated) Product Image
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    1/8" Combination Coin/Key Air Valve (Nickel Plated) 1701202 1/8" Combination Coin/Key Air Valve (Nickel Plated)
    SKU: 1701202
    Brand: Wal-rich
    (5)
    $1.09 each
      Box Up & Save 13%  
    $23.75 box of 25
    $0.95 each
    565
    Thu, Apr 29
    565
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    565 Thu, Apr 29
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  • 1/8" FV4 Auto Air Vent Product Image
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    1/8" FV4 Auto Air Vent 0590715 1/8" FV4 Auto Air Vent
    SKU: 0590715
    Brand: Watts
    (39)
    $8.70 each
    102
    Thu, Apr 29
    102
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    102 Thu, Apr 29
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  • Coin Key Air Valve <br>(Nickel Plated) Product Image
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    Coin Key Air Valve (Nickel Plated) CK-100 Coin Key Air Valve (Nickel Plated)
    SKU: CK-100
    Brand: Matco-Norca
    (4)
    $1.15 each
    1,759
    Thu, Apr 29
    1,759
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    1,759 Thu, Apr 29
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  • Gorton No. 1<br>3/4" x 1/2" Air Eliminator<br>(Main Vent Valve) Product Image
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    Gorton No. 1 3/4" x 1/2" Air Eliminator (Main Vent Valve) G14 Gorton No. 1 3/4" x 1/2" Air Eliminator (Main Vent Valve)
    SKU: G14
    Brand: Gorton
    (34)
    $30.99 each
    104
    Thu, Apr 29
    104
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    104 Thu, Apr 29
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  • Air Valve Key Product Image
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    Air Valve Key 1701208 Air Valve Key
    SKU: 1701208
    Brand: Wal-rich
    (3)
    $0.28 each
      Box Up & Save 7%  
    $6.50 box of 25
    $0.26 each
    918
    Thu, Apr 29
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    918 Thu, Apr 29
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  • 1/8" MINICAL Auto<br>Air Vent Product Image
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    1/8" MINICAL Auto Air Vent 502015A 1/8" MINICAL Auto Air Vent
    SKU: 502015A
    Brand: Caleffi
    (4)
    $7.40 each
    104
    Thu, Apr 29
    204
    QtyArrives
    104 Thu, Apr 29
    100 Mon, May 3 – Tue, May 4
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  • 79, 1/2" x 3/4" Straight <br>Water Main Vent Valve Product Image
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    79, 1/2" x 3/4" Straight Water Main Vent Valve 401488 79, 1/2" x 3/4" Straight Water Main Vent Valve
    SKU: 401488
    Brand: Hoffman
    (13)
    $104.99 each
    346
    Thu, Apr 29
    346
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    346 Thu, Apr 29
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  • 1/8" Male NPT MINICAL Automatic Air Vent w/ Service Check Valve Product Image
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    1/8" Male NPT MINICAL Automatic Air Vent w/ Service Check Valve 502115A 1/8" Male NPT MINICAL Automatic Air Vent w/ Service Check Valve
    SKU: 502115A
    Brand: Caleffi
    (10)
    $10.05 each
    159
    Thu, Apr 29
    169
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    159 Thu, Apr 29
    10 Mon, May 3 – Tue, May 4
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  • Automatic Air Vent<br>Model No. 97, 1/8"<br>(Male Threaded) Product Image
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    Automatic Air Vent Model No. 97, 1/8" (Male Threaded) 113222 Automatic Air Vent Model No. 97, 1/8" (Male Threaded)
    SKU: 113222
    Brand: Bell & Gossett
    (11)
    $11.80 each
      Box Up & Save 9%  
    $107.00 box of 10
    $10.70 each
    4
    Thu, Apr 29
    689
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    4 Thu, Apr 29
    590 Mon, May 3 – Tue, May 4
    95 Tue, May 4 – Thu, May 6
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  • Gorton No. 6 Angle Vapor Equalizing Valve Product Image
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    Gorton No. 6 Angle Vapor Equalizing Valve G6A Gorton No. 6 Angle Vapor Equalizing Valve
    SKU: G6A
    Brand: Gorton
    (14)
    $24.89 each
    66
    Thu, Apr 29
    66
    QtyArrives
    66 Thu, Apr 29
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  • 1/4" NPT Float Type Automatic Air Vent<br>150 psi, 240F Product Image
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    1/4" NPT Float Type Automatic Air Vent 150 psi, 240F FV180A 1/4" NPT Float Type Automatic Air Vent 150 psi, 240F
    SKU: FV180A
    Brand: Resideo
    (7)
    $11.24 each
    653
    Thu, Apr 29
    653
    QtyArrives
    653 Thu, Apr 29
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  • 1/2" FNPT x 3/4" MNPT<br>Hy-Vent Product Image
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    1/2" FNPT x 3/4" MNPT Hy-Vent 418-4 1/2" FNPT x 3/4" MNPT Hy-Vent
    SKU: 418-4
    Brand: Taco
    (12)
    $43.31 each
    155
    Thu, Apr 29
    439
    QtyArrives
    155 Thu, Apr 29
    284 Mon, May 3 – Tue, May 4
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  • Gorton No. 5 Angle Vapor Equalizing Valve Product Image
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    Gorton No. 5 Angle Vapor Equalizing Valve G5A Gorton No. 5 Angle Vapor Equalizing Valve
    SKU: G5A
    Brand: Gorton
    (13)
    $24.89 each
    58
    Thu, Apr 29
    58
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    58 Thu, Apr 29
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  • 1/8" NPT Goldtop<br>Universal Air Vent Heating/Cooling Systems Product Image
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    1/8" NPT Goldtop Universal Air Vent Heating/Cooling Systems FV180 1/8" NPT Goldtop Universal Air Vent Heating/Cooling Systems
    SKU: FV180
    Brand: Resideo
    (27)
    $10.60 each
    636
    Thu, Apr 29
    636
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    636 Thu, Apr 29
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  • 75, 1/2" x 3/4" Straight <br>Steam Main Air Valve Product Image
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    75, 1/2" x 3/4" Straight Steam Main Air Valve 401434 75, 1/2" x 3/4" Straight Steam Main Air Valve
    SKU: 401434
    Brand: Hoffman
    (13)
    $89.20 each
    12
    Thu, Apr 29
    85
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    12 Thu, Apr 29
    73 Mon, May 3 – Tue, May 4
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  • Gorton No. C<br>Angle Vapor<br>Equalizing Valve Product Image
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    Gorton No. C Angle Vapor Equalizing Valve GCA Gorton No. C Angle Vapor Equalizing Valve
    SKU: GCA
    Brand: Gorton
    (13)
    $24.89 each
    28
    Thu, Apr 29
    28
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    28 Thu, Apr 29
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FAQs, Manuals & Videos

Resources

Articles

  • The function of the radiator air valve or air vent is to provide a means for air to be driven out of the radiator as steam enters. A quality radiator air valve will provide quieter and faster heating radiators. Air valves are differentiated by orifice size, and selecting a radiator valve is determined by the radiator's distance from the boiler. A main vent with a large orifice should be installed closest to the boiler. A radiator located on the 2nd floor of a home should have an air valve with a smaller orifice. Air valves are available in straight or angle configurations and can be serviced simply by unscrewing the vent cap.

    We offer a wide selection of Taco, Watts, Hoffman, Gorton, Varivalve, and Jacobus air valves suitable for your heating system.

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