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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*

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  • 3 Zone Pump Control

    Caleffi
    $219.47 - $219.47
    $219.47
    $219.47 - $219.47
    $219.47
    In stock

    SKU ZSR103

    The ZSR series is multi-zone pump and boiler operating control for multiple zone hydronic heating systems. The ZSR series interfaces with low volta...

    View full details
    $219.47 - $219.47
    $219.47
    $219.47 - $219.47
    $219.47

  • Caleffi Z-one 3/4" sweat zone valve 7.5 Cv 24V normally closed w/ end switch

    Caleffi
    $134.26 - $134.26
    $134.26
    $134.26 - $134.26
    $134.26
    In stock

    SKU Z45

    $134.26 - $134.26
    $134.26
    $134.26 - $134.26
    $134.26

  • Caleffi Z-One 3/4" Press 2 way zone valve

    Caleffi
    $165.94 - $165.94
    $165.94
    $165.94 - $165.94
    $165.94
    In stock

    SKU Z45P

    $165.94 - $165.94
    $165.94
    $165.94 - $165.94
    $165.94

  • Caleffi Z-one 1" sweat zone valve 7.5 Cv 24V normally closed w/ end switch

    Caleffi
    $168.20 - $168.20
    $168.20
    $168.20 - $168.20
    $168.20
    In stock

    SKU Z46

    $168.20 - $168.20
    $168.20
    $168.20 - $168.20
    $168.20

  • Caleffi Z-One 1" Press 2 way zone valve

    Caleffi
    $187.73 - $187.73
    $187.73
    $187.73 - $187.73
    $187.73
    In stock

    SKU Z46P

    $187.73 - $187.73
    $187.73
    $187.73 - $187.73
    $187.73

  • Caleffi Z-one normally closed valve actuator 24V w/ microswitch 18" wire

    Caleffi
    $87.79 - $87.79
    $87.79
    $87.79 - $87.79
    $87.79
    In stock

    SKU Z111000

    Z1 actuator mounts on Z2 and Z3 series valve bodies with the push of a button. Two position spring return normally closed. Power: 24, 120, 208, 23...

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    $87.79 - $87.79
    $87.79
    $87.79 - $87.79
    $87.79

  • Caleffi Z-one normally closed valve actuator 120V w/ microswitch 6" wire

    Caleffi
    $87.79 - $87.79
    $87.79
    $87.79 - $87.79
    $87.79
    In stock

    SKU Z116000

    Z1 actuator mounts on Z2 and Z3 series valve bodies with the push of a button. Two position spring return normally closed. Power: 24, 120, 208, 23...

    View full details
    $87.79 - $87.79
    $87.79
    $87.79 - $87.79
    $87.79

  • Caleffi flow switch 1" NPT male NEMA 5 enclosure, UL Listed

    Caleffi
    $215.57 - $215.57
    $215.57
    $215.57 - $215.57
    $215.57
    In stock

    SKU 626600A

    $215.57 - $215.57
    $215.57
    $215.57 - $215.57
    $215.57

  • Caleffi 1" sweat adaptor to 1" SolarFlex with 1-1/4" male union thread

    Caleffi
    $26.96 - $26.96
    $26.96
    $26.96 - $26.96
    $26.96
    In stock

    SKU NA10119

    $26.96 - $26.96
    $26.96
    $26.96 - $26.96
    $26.96

  • Caleffi Z-one valve body, 2-way 3/4" sweat, 7.5 Cv, 20 psi

    Caleffi
    $51.20 - $51.20
    $51.20
    $51.20 - $51.20
    $51.20
    In stock

    SKU Z200537

    $51.20 - $51.20
    $51.20
    $51.20 - $51.20
    $51.20

  • Caleffi 3-way diverting valve w/ 1" sweat connections, 240 degrees, 20 gpm

    Caleffi
    $90.00 - $90.00
    $90.00
    $90.00 - $90.00
    $90.00
    In stock

    SKU Z300637

    $90.00 - $90.00
    $90.00
    $90.00 - $90.00
    $90.00

  • Caleffi Z-one valve body, 2-way 1" sweat, 7.5 Cv, 20 psi

    Caleffi
    $86.79 - $86.79
    $86.79
    $86.79 - $86.79
    $86.79
    In stock

    SKU Z200637

    $86.79 - $86.79
    $86.79
    $86.79 - $86.79
    $86.79

  • Caleffi washer flat sealing for 1" Solar Flex

    Caleffi
    $2.20 - $2.20
    $2.20
    $2.20 - $2.20
    $2.20
    Low stock

    SKU R50056

    $2.20 - $2.20
    $2.20
    $2.20 - $2.20
    $2.20

  • Caleffi 3/4" SWEAT zone valve & TwisTop 24V actuator w/ endswitch

    Caleffi
    $143.71 - $143.71
    $143.71
    $143.71 - $143.71
    $143.71
    In stock

    SKU 676259A

    $143.71 - $143.71
    $143.71
    $143.71 - $143.71
    $143.71

  • Caleffi dual 3/4" sweat fitting kit for pump station

    Caleffi
    $147.46 - $147.46
    $147.46
    $147.46 - $147.46
    $147.46
    In stock

    SKU NA26759

    $147.46 - $147.46
    $147.46
    $147.46 - $147.46
    $147.46

  • Caleffi Single-line 3/4" SolarFlex direct fitting kit includes 2 1" male thread adaptors

    Caleffi
    $45.45 - $45.45
    $45.45
    $45.45 - $45.45
    $45.45
    In stock

    SKU NA26650

    $45.45 - $45.45
    $45.45
    $45.45 - $45.45
    $45.45

  • Caleffi Single-line 1/2" solarFlex direct fitting set - 2 3/4" male thread adaptors

    Caleffi
    $30.72 - $30.72
    $30.72
    $30.72 - $30.72
    $30.72
    In stock

    SKU NA26640

    $30.72 - $30.72
    $30.72
    $30.72 - $30.72
    $30.72

  • Caleffi 1" Solar Flex direct fitting kit includes (2) 1-1/4" male thread adaptors

    Caleffi
    $83.22 - $83.22
    $83.22
    $83.22 - $83.22
    $83.22
    In stock

    SKU NA26660

    $83.22 - $83.22
    $83.22
    $83.22 - $83.22
    $83.22

  • Caleffi dual-line solar pump station high head/flow w/ 3-spd Wilo Star 30 pump

    Caleffi
    $1,192.37 - $1,192.37
    $1,192.37
    $1,192.37 - $1,192.37
    $1,192.37
    In stock

    SKU NA255160

    The pump station contains the following:     Ball valves in flow and return in combination with flow check valves.     Foam insulation shell     Po...

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    $1,192.37 - $1,192.37
    $1,192.37
    $1,192.37 - $1,192.37
    $1,192.37

  • 3/4" SWT Union kit for NA255160 station includes (2)1-1/4"bushing (2)1"washer(2)1-1/4"nut(2) etc

    Caleffi
    $92.62 - $92.62
    $92.62
    $92.62 - $92.62
    $92.62
    In stock

    SKU NA15559

    $92.62 - $92.62
    $92.62
    $92.62 - $92.62
    $92.62

  • 1.25" male union thread kit for NA255160 Station: includes NA10087(2) and R50055 (2)

    Caleffi
    $39.02 - $39.02
    $39.02
    $39.02 - $39.02
    $39.02
    In stock

    SKU NA15570

    $39.02 - $39.02
    $39.02
    $39.02 - $39.02
    $39.02

  • Caleffi 1" Sweat union kit for NA255160 station includes 2 1-1/4" bushing 2 1" washer, 2 nuts, etc.

    Caleffi
    $93.44 - $93.44
    $93.44
    $93.44 - $93.44
    $93.44
    In stock

    SKU NA15569

    $93.44 - $93.44
    $93.44
    $93.44 - $93.44
    $93.44

  • Caleffi discal air separator 1-1/4" sweat

    Caleffi
    $174.19 - $174.19
    $174.19
    $174.19 - $174.19
    $174.19
    In stock

    SKU 551035A

    $174.19 - $174.19
    $174.19
    $174.19 - $174.19
    $174.19

  • Caleffi 3/4" sweat union connection set to 1" male thread

    Caleffi
    $29.26 - $29.26
    $29.26
    $29.26 - $29.26
    $29.26
    In stock

    SKU NA12259

    $29.26 - $29.26
    $29.26
    $29.26 - $29.26
    $29.26

  • 1" SWT Union to 1" Male thread 2pc. kit

    Caleffi
    $51.23 - $51.23
    $51.23
    $51.23 - $51.23
    $51.23
    In stock

    SKU NA12269

    $51.23 - $51.23
    $51.23
    $51.23 - $51.23
    $51.23

  • Caleffi connection kit for 3/4" SolarFlex w/ 4 nuts, segment rings, & washers

    Caleffi
    $45.71 - $45.71
    $45.71
    $45.71 - $45.71
    $45.71
    In stock

    SKU NA12103

    $45.71 - $45.71
    $45.71
    $45.71 - $45.71
    $45.71

  • Caleffi Hydro Separator 1" Press F Union

    Caleffi
    $435.75 - $435.75
    $435.75
    $435.75 - $435.75
    $435.75
    In stock

    SKU 548066A

    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
    $435.75 - $435.75
    $435.75
    $435.75 - $435.75
    $435.75

  • Caleffi 3/4" sweat adaptor to 3/4" SolarFlex with 1" male thread

    Caleffi
    $19.91 - $19.91
    $19.91
    $19.91 - $19.91
    $19.91
    In stock

    SKU NA10061

    $19.91 - $19.91
    $19.91
    $19.91 - $19.91
    $19.91

  • Caleffi Hydro Separator 1-1/4" Press F Union

    Caleffi
    $554.25 - $554.25
    $554.25
    $554.25 - $554.25
    $554.25
    In stock

    SKU 548067A

    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
    $554.25 - $554.25
    $554.25
    $554.25 - $554.25
    $554.25

  • Caleffi 1" sweat adaptor to 3/4" SolarFlex with 1" male thread

    Caleffi
    $21.25 - $21.25
    $21.25
    $21.25 - $21.25
    $21.25
    In stock

    SKU NA10062

    $21.25 - $21.25
    $21.25
    $21.25 - $21.25
    $21.25

  • Caleffi 1" FNPT x 1-1/4" male union thread bushing

    Caleffi
    $21.57 - $21.57
    $21.57
    $21.57 - $21.57
    $21.57
    In stock

    SKU 61215A

    $21.57 - $21.57
    $21.57
    $21.57 - $21.57
    $21.57

  • Caleffi 1" NPT tail piece and nut for Caleffi Mix Valve

    Caleffi
    $28.36 - $28.36
    $28.36
    $28.36 - $28.36
    $28.36
    In stock

    SKU 59817A

    $28.36 - $28.36
    $28.36
    $28.36 - $28.36
    $28.36

  • Caleffi backflow preventer 1/2" NPT female inlet/outlet

    Caleffi
    $73.13 - $73.13
    $73.13
    $73.13 - $73.13
    $73.13
    In stock

    SKU 573403A

    $73.13 - $73.13
    $73.13
    $73.13 - $73.13
    $73.13

  • Caleffi 1-1/4" dirt separator sweat

    Caleffi
    $169.67 - $169.67
    $169.67
    $169.67 - $169.67
    $169.67
    In stock

    SKU 546235A

    $169.67 - $169.67
    $169.67
    $169.67 - $169.67
    $169.67

  • Caleffi 1" dirt separator sweat

    Caleffi
    $116.39 - $116.39
    $116.39
    $116.39 - $116.39
    $116.39
    In stock

    SKU 546228A

    $116.39 - $116.39
    $116.39
    $116.39 - $116.39
    $116.39

  • Caleffi 3/4" sweat scald protection 3-way thermostatic mix valve

    Caleffi
    $105.49 - $105.49
    $105.49
    $105.49 - $105.49
    $105.49
    In stock

    SKU 521359A

    Adjustable thermostatic and pressure balanced mixing valve for point of use where the user must be protected from the danger of scalding caused by ...

    View full details
    $105.49 - $105.49
    $105.49
    $105.49 - $105.49
    $105.49