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

Valves & Vents

  • Caleffi boiler feed valve 1/2" NPT inlet 1/2" NPT 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...

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    Original price $93.69 - Original price $93.69
    Original price
    $93.69
    $93.69 - $93.69
    Current price $93.69
  • Caleffi QuickSetter flowmeter 1/2" NPT 1/2 to 1-3/4 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 QuickSetter flowmeter 3/4" NPT 2 to 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 QuickSetter flowmeter 1" NPT 3 to 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 QuickSetter flowmeter 1-1/4" NPT 5 to 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 QuickSetter flowmeter 1-1/2" NPT 8 to 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
  • Discal Air Separator 1" Press

    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 QuickSetter+ flowmeter 3/4" Press 2 to 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 1/2" sweat inlet backflow preventer / autofill 1/2" NPT female outlet

    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 temperature / pressure gage 3-1/8" dial 1/4"NPT rear

    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 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 automatic air vent 1/8" NPT male w/ check valve

    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 automatic air vent 1/4" NPT male w/ check valve

    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 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 differential bypass 3/4" NPT w/ 3/4" NPT 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 differential bypass 1" NPT w/ 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 differential bypass 1-1/4" NPT w/ 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 Differential Bypass Valve 3/4" 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 1" dirt separator sweat

    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 1-1/4" dirt separator sweat

    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 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 backflow preventer 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 flow switch 1" NPT male NEMA 5 enclosure, UL Listed

    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
  • Caleffi flow check valve 3/4" NPT female

    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
  • 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
  • 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
    In stock

    SKU 132556A

    Original price $211.67 - Original price $211.67
    Original price
    $211.67
    $211.67 - $211.67
    Current price $211.67
  • 142 Series Variable Orifice Low Lead Balancing Valve 1" NPT w/PT ports

    Caleffi
    Original price $123.85 - Original price $123.85
    Original price
    $123.85
    $123.85 - $123.85
    Current price $123.85
    In stock

    SKU 142261A

    Static balancing valve (variable orifice, low-lead)Certified to Low Lead Laws and listed by ICC-ES for use in accordance with the U.S. and Canadia...

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    Original price $123.85 - Original price $123.85
    Original price
    $123.85
    $123.85 - $123.85
    Current price $123.85
  • 142 Series Variable Orifice Low Lead Balancing Valve 1/2" NPT w/PT ports

    Caleffi
    Original price $85.38 - Original price $85.38
    Original price
    $85.38
    $85.38 - $85.38
    Current price $85.38
    Out of stock

    SKU 142241A

    Static balancing valve (variable orifice, low-lead)Certified to Low Lead Laws and listed by ICC-ES for use in accordance with the U.S. and Canadia...

    View full details
    Original price $85.38 - Original price $85.38
    Original price
    $85.38
    $85.38 - $85.38
    Current price $85.38
    Sold out
  • 142 Series Variable Orifice Low Lead Balancing Valve 3/4" NPT w/PT ports

    Caleffi
    Original price $91.54 - Original price $91.54
    Original price
    $91.54
    $91.54 - $91.54
    Current price $91.54
    In stock

    SKU 142251A

    Static balancing valve (variable orifice, low-lead)Certified to Low Lead Laws and listed by ICC-ES for use in accordance with the U.S. and Canadia...

    View full details
    Original price $91.54 - Original price $91.54
    Original price
    $91.54
    $91.54 - $91.54
    Current price $91.54