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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. Free Shipping on qualified orders over $599!

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  • Buderus GB142 water pressure sensor (replaces old part # 7101436)

    Bosch Thermotechnology Corp
    Original price $153.21 - Original price $153.21
    Original price
    $153.21
    $153.21 - $153.21
    Current price $153.21
    In stock

    SKU 8718600019

    Original price $153.21 - Original price $153.21
    Original price
    $153.21
    $153.21 - $153.21
    Current price $153.21
  • Caleffi pump station circulator, 15-58U Pump, 1"G, 115 VAC, Iron Volute - REPLACES NA12168

    Caleffi North America, Inc
    Original price $239.47 - Original price $239.47
    Original price
    $239.47
    $239.47 - $239.47
    Current price $239.47
    In stock

    SKU NA10481

    UL listed for Canada and the USA. Voltage is 115V/60HZ 3-speed pump Maximum water temperature: 230F (110C)  replaces: Caleffi NA12168

    Original price $239.47 - Original price $239.47
    Original price
    $239.47
    $239.47 - $239.47
    Current price $239.47
  • O-RING SET FOR ORIFICE GB142

    Bosch Thermotechnology Corp
    Original price $53.08 - Original price $53.08
    Original price
    $53.08
    $53.08 - $53.08
    Current price $53.08
    In stock

    SKU 7099018

    Original price $53.08 - Original price $53.08
    Original price
    $53.08
    $53.08 - $53.08
    Current price $53.08
  • Caleffi temperature / pressure gage 3-1/8" dial 1/4"NPT rear

    Caleffi North America, Inc
    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
  • 1" Press Composite DirtMag

    Caleffi North America, Inc
    Original price $205.08 - Original price $205.08
    Original price
    $205.08
    $205.08 - $205.08
    Current price $205.08
    In stock

    SKU NA545366

    Dirt separator with magnet. Brass mounting housing. Composite PA66G30 body. Max. working pressure: 45 psi. Working temperature range: 32—195°F. Pa...

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    Original price $205.08 - Original price $205.08
    Original price
    $205.08
    $205.08 - $205.08
    Current price $205.08
  • Caleffi dual solar pump station return & flow, 3-speed NEEDS FITTINGS KIT

    Caleffi North America, Inc
    Original price $867.21 - Original price $867.21
    Original price
    $867.21
    $867.21 - $867.21
    Current price $867.21
    In stock

    SKU 279051A

    Complete with:    Safety relief valve    Ball valves with built-in flow checks in return (non-drainback models only)    Temperature gauges in...

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    Original price $867.21 - Original price $867.21
    Original price
    $867.21
    $867.21 - $867.21
    Current price $867.21
  • Caleffi 1" union sweat zone valve & TwisTop 24V actuator w/ endswitch

    Caleffi North America, Inc
    Original price $164.03 - Original price $164.03
    Original price
    $164.03
    $164.03 - $164.03
    Current price $164.03
    In stock

    SKU 676269A

    Original price $164.03 - Original price $164.03
    Original price
    $164.03
    $164.03 - $164.03
    Current price $164.03
  • CASING LATCHES, RT GB142

    Bosch Thermotechnology Corp
    Original price $44.03 - Original price $44.03
    Original price
    $44.03
    $44.03 - $44.03
    Current price $44.03
    In stock

    SKU 7099038

    Original price $44.03 - Original price $44.03
    Original price
    $44.03
    $44.03 - $44.03
    Current price $44.03
  • Caleffi 1" PRESS zone valve & TwisTop 24V actuator w/ endswitch

    Caleffi North America, Inc
    Original price $170.56 - Original price $170.56
    Original price
    $170.56
    $170.56 - $170.56
    Current price $170.56
    In stock

    SKU 676266A

    Original price $170.56 - Original price $170.56
    Original price
    $170.56
    $170.56 - $170.56
    Current price $170.56
  • Caleffi 1/2" union sweat zone valve & TwisTop 24V actuator w/ endswitch - Discontinued 2018

    Caleffi North America, Inc
    Original price $132.10 - Original price $132.10
    Original price
    $132.10
    $132.10 - $132.10
    Current price $132.10
    In stock

    SKU 676249A

    Original price $132.10 - Original price $132.10
    Original price
    $132.10
    $132.10 - $132.10
    Current price $132.10
  • Caleffi 1/2" sweat inlet backflow preventer / autofill 1/2" NPT female outlet

    Caleffi North America, Inc
    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 discal compact air separator 3/4" SWT

    Caleffi North America, Inc
    Original price $76.54 - Original price $76.54
    Original price
    $76.54
    $76.54 - $76.54
    Current price $76.54
    In stock

    SKU 551022A

    Original price $76.54 - Original price $76.54
    Original price
    $76.54
    $76.54 - $76.54
    Current price $76.54
  • Caleffi discal air separator 2" sweat

    Caleffi North America, Inc
    Original price $277.65 - Original price $277.65
    Original price
    $277.65
    $277.65 - $277.65
    Current price $277.65
    In stock

    SKU 551054A

    Original price $277.65 - Original price $277.65
    Original price
    $277.65
    $277.65 - $277.65
    Current price $277.65
  • Caleffi discal air separator 2" NPT female

    Caleffi North America, Inc
    Original price $291.40 - Original price $291.40
    Original price
    $291.40
    $291.40 - $291.40
    Current price $291.40
    In stock

    SKU 551009A

    Original price $291.40 - Original price $291.40
    Original price
    $291.40
    $291.40 - $291.40
    Current price $291.40
  • Caleffi discal air separators 2" flange - steel

    Caleffi North America, Inc
    Original price $2,426.61 - Original price $2,426.61
    Original price
    $2,426.61
    $2,426.61 - $2,426.61
    Current price $2,426.61
    In stock

    SKU 551050A

    Original price $2,426.61 - Original price $2,426.61
    Original price
    $2,426.61
    $2,426.61 - $2,426.61
    Current price $2,426.61
  • Caleffi discal air separator 1" sweat

    Caleffi North America, Inc
    Original price $119.84 - Original price $119.84
    Original price
    $119.84
    $119.84 - $119.84
    Current price $119.84
    In stock

    SKU 551028A

    Original price $119.84 - Original price $119.84
    Original price
    $119.84
    $119.84 - $119.84
    Current price $119.84
  • Discal Air Separator 1" Press

    Caleffi North America, Inc
    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 discal air separator 1" NPT female

    Caleffi North America, Inc
    Original price $125.73 - Original price $125.73
    Original price
    $125.73
    $125.73 - $125.73
    Current price $125.73
    In stock

    SKU 551006A

    Original price $125.73 - Original price $125.73
    Original price
    $125.73
    $125.73 - $125.73
    Current price $125.73
  • Discal Air Separator 1-1/4" Press

    Caleffi North America, Inc
    Original price $220.03 - Original price $220.03
    Original price
    $220.03
    $220.03 - $220.03
    Current price $220.03
    In stock

    SKU 551067A

    Original price $220.03 - Original price $220.03
    Original price
    $220.03
    $220.03 - $220.03
    Current price $220.03
  • Caleffi discal air separator 1-1/4" NPT female

    Caleffi North America, Inc
    Original price $184.02 - Original price $184.02
    Original price
    $184.02
    $184.02 - $184.02
    Current price $184.02
    In stock

    SKU 551007A

    Original price $184.02 - Original price $184.02
    Original price
    $184.02
    $184.02 - $184.02
    Current price $184.02
  • Caleffi discal air separator 1-1/2" sweat

    Caleffi North America, Inc
    Original price $226.58 - Original price $226.58
    Original price
    $226.58
    $226.58 - $226.58
    Current price $226.58
    In stock

    SKU 551041A

    Original price $226.58 - Original price $226.58
    Original price
    $226.58
    $226.58 - $226.58
    Current price $226.58
  • Caleffi discal air separator 1-1/2" NPT female

    Caleffi North America, Inc
    Original price $242.26 - Original price $242.26
    Original price
    $242.26
    $242.26 - $242.26
    Current price $242.26
    In stock

    SKU 551008A

    Original price $242.26 - Original price $242.26
    Original price
    $242.26
    $242.26 - $242.26
    Current price $242.26
  • Caleffi Hydro Separator 2" Press F Union

    Caleffi North America, Inc
    Original price $908.25 - Original price $908.25
    Original price
    $908.25
    $908.25 - $908.25
    Current price $908.25
    In stock

    SKU 548069A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

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    Original price $908.25 - Original price $908.25
    Original price
    $908.25
    $908.25 - $908.25
    Current price $908.25
  • Caleffi Hydro Separator 1-1/2" Press F Union

    Caleffi North America, Inc
    Original price $719.25 - Original price $719.25
    Original price
    $719.25
    $719.25 - $719.25
    Current price $719.25
    In stock

    SKU 548068A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

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    Original price $719.25 - Original price $719.25
    Original price
    $719.25
    $719.25 - $719.25
    Current price $719.25
  • Caleffi hydro separator 2" NPT union

    Caleffi North America, Inc
    Original price $744.75 - Original price $744.75
    Original price
    $744.75
    $744.75 - $744.75
    Current price $744.75
    In stock

    SKU 548009A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

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    Original price $744.75 - Original price $744.75
    Original price
    $744.75
    $744.75 - $744.75
    Current price $744.75
  • Caleffi Hydro Separator 1" SWT union

    Caleffi North America, Inc
    Original price $385.50 - Original price $385.50
    Original price
    $385.50
    $385.50 - $385.50
    Current price $385.50
    In stock

    SKU 548096A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

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    Original price $385.50 - Original price $385.50
    Original price
    $385.50
    $385.50 - $385.50
    Current price $385.50
  • Caleffi Hydro Separator 1 1/4" SWT union

    Caleffi North America, Inc
    Original price $465.00 - Original price $465.00
    Original price
    $465.00
    $465.00 - $465.00
    Current price $465.00
    In stock

    SKU 548097A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

    View full details
    Original price $465.00 - Original price $465.00
    Original price
    $465.00
    $465.00 - $465.00
    Current price $465.00
  • Actuator, V: 24 VAC, for d: ¾, 1¼, 1½, 2

    Viega LLC
    Original price $312.21 - Original price $312.21
    Original price
    $312.21
    $312.21 - $312.21
    Current price $312.21
    In stock

    SKU 20042

    For use with three way mixing valve Suitable for Mixing valve Model 2876.3US Modulating Model 2870.7US

    Original price $312.21 - Original price $312.21
    Original price
    $312.21
    $312.21 - $312.21
    Current price $312.21
  • Caleffi hydro separator 1-1/4" NPT female union

    Caleffi North America, Inc
    Original price $487.50 - Original price $487.50
    Original price
    $487.50
    $487.50 - $487.50
    Current price $487.50
    In stock

    SKU 548007A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

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    Original price $487.50 - Original price $487.50
    Original price
    $487.50
    $487.50 - $487.50
    Current price $487.50
  • Caleffi hydro separator 1-1/2" NPT female union

    Caleffi North America, Inc
    Original price $639.00 - Original price $639.00
    Original price
    $639.00
    $639.00 - $639.00
    Current price $639.00
    In stock

    SKU 548008A

    This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-c...

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    Original price $639.00 - Original price $639.00
    Original price
    $639.00
    $639.00 - $639.00
    Current price $639.00
  • MixCal 3-way Thermostatic Mixing Valve 3/4" Press w/temp gauge

    Caleffi North America, Inc
    Original price $180.00 - Original price $180.00
    Original price
    $180.00
    $180.00 - $180.00
    Current price $180.00
    In stock

    SKU 521516A

    Original price $180.00 - Original price $180.00
    Original price
    $180.00
    $180.00 - $180.00
    Current price $180.00
  • Caleffi 3-way 3/4" NPT thermostatic mix valve low-lead brass

    Caleffi North America, Inc
    Original price $160.82 - Original price $160.82
    Original price
    $160.82
    $160.82 - $160.82
    Current price $160.82
    In stock

    SKU 521500A

    Original price $160.82 - Original price $160.82
    Original price
    $160.82
    $160.82 - $160.82
    Current price $160.82
  • 3-way thermostatic mixing valve, LOW LEAD Brass w/adaptor and Temp gauge 1" SWT

    Caleffi North America, Inc
    Original price $211.72 - Original price $211.72
    Original price
    $211.72
    $211.72 - $211.72
    Current price $211.72
    In stock

    SKU 521619A

    Original price $211.72 - Original price $211.72
    Original price
    $211.72
    $211.72 - $211.72
    Current price $211.72
  • Caleffi 1" sweat 3-way thermostatic mix valve low-lead brass

    Caleffi North America, Inc
    Original price $180.73 - Original price $180.73
    Original price
    $180.73
    $180.73 - $180.73
    Current price $180.73
    In stock

    SKU 521609A

    Original price $180.73 - Original price $180.73
    Original price
    $180.73
    $180.73 - $180.73
    Current price $180.73
  • Caleffi MixCal 3-way Thermostatic Mixing Valve 1" Press

    Caleffi North America, Inc
    Original price $194.75 - Original price $194.75
    Original price
    $194.75
    $194.75 - $194.75
    Current price $194.75
    In stock

    SKU 521606A

    Original price $194.75 - Original price $194.75
    Original price
    $194.75
    $194.75 - $194.75
    Current price $194.75
  • Caleffi 4-in-1 Hydraulic Separator 2" Sweat Union

    Caleffi North America, Inc
    Original price $1,026.00 - Original price $1,026.00
    Original price
    $1,026.00
    $1,026.00 - $1,026.00
    Current price $1,026.00
    In stock

    SKU 549599A

    The Caleffi SEP4™ combination hydraulic, air, dirt and magnetic separator is a device that incorporates high performance air and magnetic and non-m...

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    Original price $1,026.00 - Original price $1,026.00
    Original price
    $1,026.00
    $1,026.00 - $1,026.00
    Current price $1,026.00