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Free Shipping on qualified orders over $599! Excluding HI, AK & Canada, and products marked Special Handling.
Free Shipping on qualified orders over $599! Excluding HI, AK & Canada, and products marked Special Handling.

Valves & Vents

  • Caleffi Series 553 Automatic Filling Units 1/2"Union NPT Male Inlet with 1/2" NPT Female Outlet

    Caleffi
    Original price $93.69 - Original price $93.69
    Original price
    $93.69
    $93.69 - $93.69
    Current price $93.69
    In stock

    SKU 553542A

    1/2" MNPT Inlet x 1/2" FNPT Outlet Pre-adjustable automatic filling valve, anti-scale, visual system pressure setting indicator. Complete with man...

    View full details
    Original price $93.69 - Original price $93.69
    Original price
    $93.69
    $93.69 - $93.69
    Current price $93.69
  • Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter-1/2" NPT: .5-1.75 GPM

    Caleffi
    Original price $172.13 - Original price $172.13
    Original price
    $172.13
    $172.13 - $172.13
    Current price $172.13
    In stock

    SKU 132432A

    Original price $172.13 - Original price $172.13
    Original price
    $172.13
    $172.13 - $172.13
    Current price $172.13
  • Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter - 3/4" NPT: 2-7 GPM

    Caleffi
    Original price $185.25 - Original price $185.25
    Original price
    $185.25
    $185.25 - $185.25
    Current price $185.25
    In stock

    SKU 132552A

    Original price $185.25 - Original price $185.25
    Original price
    $185.25
    $185.25 - $185.25
    Current price $185.25
  • Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter-1" NPT: 3-10 GPM

    Caleffi
    Original price $216.39 - Original price $216.39
    Original price
    $216.39
    $216.39 - $216.39
    Current price $216.39
    In stock

    SKU 132662A

    Original price $216.39 - Original price $216.39
    Original price
    $216.39
    $216.39 - $216.39
    Current price $216.39
  • Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter-1-1/4" NPT: 5-19 GPM

    Caleffi
    Original price $287.70 - Original price $287.70
    Original price
    $287.70
    $287.70 - $287.70
    Current price $287.70
    In stock

    SKU 132772A

    Original price $287.70 - Original price $287.70
    Original price
    $287.70
    $287.70 - $287.70
    Current price $287.70
  • Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter-1-1/2" NPT: 8-32 GPM

    Caleffi
    Original price $340.98 - Original price $340.98
    Original price
    $340.98
    $340.98 - $340.98
    Current price $340.98
    In stock

    SKU 132882A

    Original price $340.98 - Original price $340.98
    Original price
    $340.98
    $340.98 - $340.98
    Current price $340.98
  • Caleffi 551 Series Discal Air Separator-1" Press Connection

    Caleffi
    Original price $142.76 - Original price $142.76
    Original price
    $142.76
    $142.76 - $142.76
    Current price $142.76
    In stock

    SKU 551066A

    Original price $142.76 - Original price $142.76
    Original price
    $142.76
    $142.76 - $142.76
    Current price $142.76
  • Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter - 3/4" Press: 2-7 GPM

    Caleffi
    Original price $251.59 - Original price $251.59
    Original price
    $251.59
    $251.59 - $251.59
    Current price $251.59
    In stock

    SKU 132556AFC

    Original price $251.59 - Original price $251.59
    Original price
    $251.59
    $251.59 - $251.59
    Current price $251.59
  • Caleffi 573 Series Backflow Preventer and AutoFill Assembly 1/2" Sweat Union Inlet

    Caleffi
    Original price $153.00 - Original price $153.00
    Original price
    $153.00
    $153.00 - $153.00
    Current price $153.00
    In stock

    SKU 573009A

    Original price $153.00 - Original price $153.00
    Original price
    $153.00
    $153.00 - $153.00
    Current price $153.00
  • Caleffi Pressure/Temperature Gage for Boilers with 3 1/8" Dial size

    Caleffi
    Original price $31.23 - Original price $31.23
    Original price
    $31.23
    $31.23 - $31.23
    Current price $31.23
    In stock

    SKU NA503040

    Original price $31.23 - Original price $31.23
    Original price
    $31.23
    $31.23 - $31.23
    Current price $31.23
  • Caleffi Series 502 Automatic Air Vent 1/8" NPT Male

    Caleffi
    Original price $10.87 - Original price $10.87
    Original price
    $10.87
    $10.87 - $10.87
    Current price $10.87
    In stock

    SKU 502610A

    Original price $10.87 - Original price $10.87
    Original price
    $10.87
    $10.87 - $10.87
    Current price $10.87
  • Caleffi Series 5027 Automatic Air Vent NPTM With Check Valve-1/8"

    Caleffi
    Original price $15.07 - Original price $15.07
    Original price
    $15.07
    $15.07 - $15.07
    Current price $15.07
    In stock

    SKU 502710A

    Original price $15.07 - Original price $15.07
    Original price
    $15.07
    $15.07 - $15.07
    Current price $15.07
  • Caleffi Series 5027 Automatic Air Vent NPTM With Check Valve-1/4"

    Caleffi
    Original price $15.98 - Original price $15.98
    Original price
    $15.98
    $15.98 - $15.98
    Current price $15.98
    In stock

    SKU 502720A

    Original price $15.98 - Original price $15.98
    Original price
    $15.98
    $15.98 - $15.98
    Current price $15.98
  • Caleffi Series 5022 High Capacity 1/2" NPT Male Air Vent

    Caleffi
    Original price $29.36 - Original price $29.36
    Original price
    $29.36
    $29.36 - $29.36
    Current price $29.36
    In stock

    SKU 502243A

    Original price $29.36 - Original price $29.36
    Original price
    $29.36
    $29.36 - $29.36
    Current price $29.36
  • Caleffi Series 519 Differential Pressure Bypass Valve with 3/4" Male Inlet and 3/4" NPTM Outlet

    Caleffi
    Original price $109.84 - Original price $109.84
    Original price
    $109.84
    $109.84 - $109.84
    Current price $109.84
    In stock

    SKU 519502A

    Original price $109.84 - Original price $109.84
    Original price
    $109.84
    $109.84 - $109.84
    Current price $109.84
  • Caleffi Series 519 Differential Pressure Bypass Valve with 1" NPT Female Inlet and 1" Sweat Outlet

    Caleffi
    Original price $172.13 - Original price $172.13
    Original price
    $172.13
    $172.13 - $172.13
    Current price $172.13
    In stock

    SKU 519609A

    Original price $172.13 - Original price $172.13
    Original price
    $172.13
    $172.13 - $172.13
    Current price $172.13
  • Caleffi Series 519 Differential Pressure Bypass Valve with 1 1/4" NPT and 1 1/4" Sweat Outlet.

    Caleffi
    Original price $206.56 - Original price $206.56
    Original price
    $206.56
    $206.56 - $206.56
    Current price $206.56
    In stock

    SKU 519709A

    Original price $206.56 - Original price $206.56
    Original price
    $206.56
    $206.56 - $206.56
    Current price $206.56
  • Caleffi Series 519 Differential Pressure Bypass Valve with 3/4" press x 3/4" NPT press

    Caleffi
    Original price $124.59 - Original price $124.59
    Original price
    $124.59
    $124.59 - $124.59
    Current price $124.59
    In stock

    SKU 519566A

    Original price $124.59 - Original price $124.59
    Original price
    $124.59
    $124.59 - $124.59
    Current price $124.59
  • Caleffi Series 546 Dirtcal Dirt Separaters Brass Sweat-1"

    Caleffi
    Original price $116.39 - Original price $116.39
    Original price
    $116.39
    $116.39 - $116.39
    Current price $116.39
    In stock

    SKU 546228A

    Original price $116.39 - Original price $116.39
    Original price
    $116.39
    $116.39 - $116.39
    Current price $116.39
  • Caleffi Series 546 Dirtcal Dirt Separaters Brass Sweat-1 -1/4"

    Caleffi
    Original price $169.67 - Original price $169.67
    Original price
    $169.67
    $169.67 - $169.67
    Current price $169.67
    In stock

    SKU 546235A

    Original price $169.67 - Original price $169.67
    Original price
    $169.67
    $169.67 - $169.67
    Current price $169.67
  • Caleffi Series 573 Backflow Preventer 1/2" NPT Female Inlet/Outlet

    Caleffi
    Original price $73.13 - Original price $73.13
    Original price
    $73.13
    $73.13 - $73.13
    Current price $73.13
    In stock

    SKU 573403A

    Original price $73.13 - Original price $73.13
    Original price
    $73.13
    $73.13 - $73.13
    Current price $73.13
  • Caleffi Series 573 Backflow Preventers 1/2" Sweat Inlet/Outlet

    Caleffi
    Original price $69.53 - Original price $69.53
    Original price
    $69.53
    $69.53 - $69.53
    Current price $69.53
    In stock

    SKU 573409A

    Original price $69.53 - Original price $69.53
    Original price
    $69.53
    $69.53 - $69.53
    Current price $69.53
  • Caleffi Universal Flow Switch

    Caleffi
    Original price $215.57 - Original price $215.57
    Original price
    $215.57
    $215.57 - $215.57
    Current price $215.57
    In stock

    SKU 626600A

    Original price $215.57 - Original price $215.57
    Original price
    $215.57
    $215.57 - $215.57
    Current price $215.57
  • Flow Check Valve. 3/4" NPTF. Brass Body

    Caleffi
    Original price $19.24 - Original price $19.24
    Original price
    $19.24
    $19.24 - $19.24
    Current price $19.24
    In stock

    SKU 510502A

    Original price $19.24 - Original price $19.24
    Original price
    $19.24
    $19.24 - $19.24
    Current price $19.24
  • Webstone Air Separator, brass, 2"

    Webstone
    Original price $378.12 - Original price $378.12
    Original price
    $378.12
    $378.12 - $378.12
    Current price $378.12
    In stock

    SKU 75007

    Original price $378.12 - Original price $378.12
    Original price
    $378.12
    $378.12 - $378.12
    Current price $378.12
  • Condensate Drain (4" Diameter)

    M&G Duravent
    Original price $87.47 - Original price $87.47
    Original price
    $87.47
    $87.47 - $87.47
    Current price $87.47
    In stock

    SKU 300960

    Original price $87.47 - Original price $87.47
    Original price
    $87.47
    $87.47 - $87.47
    Current price $87.47
  • Autofill Combo 1/2" FNPT X 1/2" FNPT

    Caleffi
    Original price $160.50 - Original price $160.50
    Original price
    $160.50
    $160.50 - $160.50
    Current price $160.50
    In stock

    SKU 573002A

    Original price $160.50 - Original price $160.50
    Original price
    $160.50
    $160.50 - $160.50
    Current price $160.50
  • "Multiflex" 2-pipe isolating valve, 1/2" angle

    Oventrop
    Original price $34.92 - Original price $34.92
    Original price
    $34.92
    $34.92 - $34.92
    Current price $34.92
    In stock

    SKU 101 58 14

    Original price $34.92 - Original price $34.92
    Original price
    $34.92
    $34.92 - $34.92
    Current price $34.92
  • "Multiflex" 2-pipe isolating valve, 1/2" straight

    Oventrop
    Original price $31.75 - Original price $31.75
    Original price
    $31.75
    $31.75 - $31.75
    Current price $31.75
    In stock

    SKU 101 58 13

    Original price $31.75 - Original price $31.75
    Original price
    $31.75
    $31.75 - $31.75
    Current price $31.75
  • 1" STRAIGHT NPT ZONE VALVE

    Oventrop
    Original price $62.72 - Original price $62.72
    Original price
    $62.72
    $62.72 - $62.72
    Current price $62.72
    Low stock

    SKU 188 91 08

    Original price $62.72 - Original price $62.72
    Original price
    $62.72
    $62.72 - $62.72
    Current price $62.72
  • QuickSetter Balancing Valve w/ FM 3/4" press 2-7 GPM

    Caleffi
    Original price $211.67 - Original price $211.67
    Original price
    $211.67
    $211.67 - $211.67
    Current price $211.67
    Low stock

    SKU 132556A

    Original price $211.67 - Original price $211.67
    Original price
    $211.67
    $211.67 - $211.67
    Current price $211.67
  • ROTH 3/4" BALL VLV W/ BALANCING FOR 1/2" PEX (3/4" SWEAT)

    Roth Industries, Inc
    Original price $55.47 - Original price $55.47
    Original price
    $55.47
    $55.47 - $55.47
    Current price $55.47
    In stock

    SKU 2340015113

    Original price $55.47 - Original price $55.47
    Original price
    $55.47
    $55.47 - $55.47
    Current price $55.47
  • ROTH 3/4" BALL VLV/NO BALANCE FOR 5/8" pex (3/4" SWEAT)

    Roth Industries, Inc
    Original price $40.51 - Original price $40.51
    Original price
    $40.51
    $40.51 - $40.51
    Current price $40.51
    In stock

    SKU 2340015214

    Original price $40.51 - Original price $40.51
    Original price
    $40.51
    $40.51 - $40.51
    Current price $40.51
  • 3/4" BRASS SHUT OFF

    TanklessWaterHeaters
    Original price $40.33 - Original price $40.33
    Original price
    $40.33
    $40.33 - $40.33
    Current price $40.33
    In stock

    SKU 254-1

    Original price $40.33 - Original price $40.33
    Original price
    $40.33
    $40.33 - $40.33
    Current price $40.33
  • 2 PIECE 1" ISOFLANGE BRONZE

    TanklessWaterHeaters
    Original price $40.33 - Original price $40.33
    Original price
    $40.33
    $40.33 - $40.33
    Current price $40.33
    In stock

    SKU 255-2

    Original price $40.33 - Original price $40.33
    Original price
    $40.33
    $40.33 - $40.33
    Current price $40.33