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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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  • Caleffi segment C ring for 1/2" solar flex - Discontinued 2018

    Caleffi
    $2.44 - $2.44
    $2.44
    $2.44 - $2.44
    $2.44
    In stock

    SKU NA12112

    $2.44 - $2.44
    $2.44
    $2.44 - $2.44
    $2.44

  • Caleffi 1/2" SolarFlex stainless steel insulated pipe 50' coil with sensor wire - Discontinued 2018

    Caleffi
    $770.93 - $770.93
    $770.93
    $770.93 - $770.93
    $770.93
    In stock

    SKU NA3520-15

    SolarFlex™ stainless steel piping with EPDM insulation. Used to connect solar collector with storage tank. Integrated sensor cable saves time and ...

    View full details
    $770.93 - $770.93
    $770.93
    $770.93 - $770.93
    $770.93

  • Caleffi 3-way diverting valve w/ 3/4" sweat 240 degrees, 20 gpm - Replaces Z300537

    Caleffi
    $75.75 - $75.75
    $75.75
    $75.75 - $75.75
    $75.75
    In stock

    SKU Z307537

    $75.75 - $75.75
    $75.75
    $75.75 - $75.75
    $75.75

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

    Caleffi
    $148.06 - $148.06
    $148.06
    $148.06 - $148.06
    $148.06
    In stock

    SKU 676256A

    $148.06 - $148.06
    $148.06
    $148.06 - $148.06
    $148.06

  • Caleffi flow check valve 3/4" NPT female

    Caleffi
    $19.24 - $19.24
    $19.24
    $19.24 - $19.24
    $19.24
    In stock

    SKU 510502A

    $19.24 - $19.24
    $19.24
    $19.24 - $19.24
    $19.24

  • Double Nipple for 1" SolarFlex w/ 1.25" thread * 1.25' thread

    Caleffi
    $27.33 - $27.33
    $27.33
    $27.33 - $27.33
    $27.33
    In stock

    SKU NA12124

    $27.33 - $27.33
    $27.33
    $27.33 - $27.33
    $27.33

  • Double Nipple for 1/2" SolarFlex with 3/4" male x 3/4" male

    Caleffi
    $13.69 - $13.69
    $13.69
    $13.69 - $13.69
    $13.69
    In stock

    SKU NA12122

    $13.69 - $13.69
    $13.69
    $13.69 - $13.69
    $13.69

  • 6 Zone Pump Control

    Caleffi
    $314.21 - $314.21
    $314.21
    $314.21 - $314.21
    $314.21
    In stock

    SKU ZSR106

    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
    $314.21 - $314.21
    $314.21
    $314.21 - $314.21
    $314.21

  • Caleffi Twistop thermoelectric actuator 24V w/ micro switch (replaces 656314)

    Caleffi
    $103.97 - $103.97
    $103.97
    $103.97 - $103.97
    $103.97
    In stock

    SKU 656354

    Power Supply:  24 V AC/DCInitial current draw:  ≤ 250 mAPower consumption:      Holding:  3 W     Inrush:  6 VA Rating of micro-switch contacts:  ...

    View full details
    $103.97 - $103.97
    $103.97
    $103.97 - $103.97
    $103.97

  • Pipe Hangers for 1/2" Solar Flex (Sold from Caleffi in 4 packs)

    Caleffi
    $25.29 - $25.29
    $25.29
    $25.29 - $25.29
    $25.29
    In stock

    SKU NA12132

    $25.29 - $25.29
    $25.29
    $25.29 - $25.29
    $25.29

  • Caleffi shut-off air vent valve 1/2" NPT M x F, 360 degree F rated

    Caleffi
    $42.30 - $42.30
    $42.30
    $42.30 - $42.30
    $42.30
    In stock

    SKU NA29284

    $42.30 - $42.30
    $42.30
    $42.30 - $42.30
    $42.30

  • Caleffi 3/4" sweat tail piece for use with 1" union nut

    Caleffi
    $10.36 - $10.36
    $10.36
    $10.36 - $10.36
    $10.36
    In stock

    SKU NA10003

    $10.36 - $10.36
    $10.36
    $10.36 - $10.36
    $10.36

  • Caleffi temperature pocket well for hydro separators 1/2" NPT & 1-3/4" long

    Caleffi
    $15.97 - $15.97
    $15.97
    $15.97 - $15.97
    $15.97
    In stock

    SKU 694045

    For 548 and 5495 Series Hydro Separators. Fits:→ 1"→ 1¼"→ 1½"→ 2" 1¾" pocket length. Inside thread:  20 x 1.0 mm

    $15.97 - $15.97
    $15.97
    $15.97 - $15.97
    $15.97

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

    Caleffi
    $93.69 - $93.69
    $93.69
    $93.69 - $93.69
    $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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    $93.69 - $93.69
    $93.69
    $93.69 - $93.69
    $93.69

  • Z-one Relay Four Zone Valve Control

    Caleffi
    $197.37 - $197.37
    $197.37
    $197.37 - $197.37
    $197.37
    In stock

    SKU ZVR104

    Interfaces with low voltage thermostats or any other low voltage controllers having a switching action. Controls from 3 to 6 zones (model dependent...

    View full details
    $197.37 - $197.37
    $197.37
    $197.37 - $197.37
    $197.37

  • Z-one Relay Three Zone Valve Control

    Caleffi
    $166.58 - $166.58
    $166.58
    $166.58 - $166.58
    $166.58
    In stock

    SKU ZVR103

    Interfaces with low voltage thermostats or any other low voltage controllers having a switching action. Controls from 3 to 6 zones (model dependent...

    View full details
    $166.58 - $166.58
    $166.58
    $166.58 - $166.58
    $166.58

  • 4 Zone Pump Control

    Caleffi
    $256.58 - $256.58
    $256.58
    $256.58 - $256.58
    $256.58
    In stock

    SKU ZSR104

    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
    $256.58 - $256.58
    $256.58
    $256.58 - $256.58
    $256.58

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

    Caleffi
    $15.07 - $15.07
    $15.07
    $15.07 - $15.07
    $15.07
    In stock

    SKU 502710A

    $15.07 - $15.07
    $15.07
    $15.07 - $15.07
    $15.07

  • 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...

    View full details
    $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