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

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  • DANFOSS HT ONLY BAT.PWRED NONPRGMBLE TSTAT

    TanklessWaterHeaters
    $70.16 - $70.16
    $70.16
    $70.16 - $70.16
    $70.16
    In stock

    SKU 087N730000

    $70.16 - $70.16
    $70.16
    $70.16 - $70.16
    $70.16

  • Knurled Screw

    TanklessWaterHeaters
    $6.38 - $6.38
    $6.38
    $6.38 - $6.38
    $6.38
    In stock

    SKU 04-30835

    $6.38 - $6.38
    $6.38
    $6.38 - $6.38
    $6.38

  • Copper Manifold - Valveless, 2'' Header x 3/4'' Circuit Connection - 18 Outlets

    Viega LLC
    $324.85 - $324.85
    $324.85
    $324.85 - $324.85
    $324.85
    In stock

    SKU 17100

    For use in Heating, Cooling, and Snow Melt applications Type L copper Solder Model 2835US

    $324.85 - $324.85
    $324.85
    $324.85 - $324.85
    $324.85

  • Copper Manifold - Valveless, 1'' Header x 1/2'' Circuit Connection - 4 Outlets

    Viega LLC
    $42.18 - $42.18
    $42.18
    $42.18 - $42.18
    $42.18
    In stock

    SKU 17142

    For use in Heating, Cooling, and Snow Melt applications Type L copper Solder Model 2835US

    $42.18 - $42.18
    $42.18
    $42.18 - $42.18
    $42.18

  • Copper Manifold - Valveless, 1'' Header x 1/2'' Circuit Connection - 3 Outlets

    Viega LLC
    $52.28 - $52.28
    $52.28
    $52.28 - $52.28
    $52.28
    In stock

    SKU 17141

    For use in Heating, Cooling, and Snow Melt applications Type L copper Solder Model 2835US

    $52.28 - $52.28
    $52.28
    $52.28 - $52.28
    $52.28

  • Copper Manifold - Valveless, 1'' Header x 1/2'' Circuit Connection - 2 Outlets

    Viega LLC
    $25.89 - $25.89
    $25.89
    $25.89 - $25.89
    $25.89
    In stock

    SKU 17140

    For use in Heating, Cooling, and Snow Melt applications Type L copper Solder Model 2835US

    $25.89 - $25.89
    $25.89
    $25.89 - $25.89
    $25.89

  • Copper Manifold - Valveless, 1'' Header x 1/2'' Circuit Connection - 12 Outlets

    Viega LLC
    $118.70 - $118.70
    $118.70
    $118.70 - $118.70
    $118.70
    In stock

    SKU 17143

    For use in Heating, Cooling, and Snow Melt applications Type L copper Solder Model 2835US

    $118.70 - $118.70
    $118.70
    $118.70 - $118.70
    $118.70

  • Copper Manifold - Valveless, 1-1/2'' Header x 3/4'' Circuit Connection - 18 Outlets

    Viega LLC
    $273.81 - $273.81
    $273.81
    $273.81 - $273.81
    $273.81
    In stock

    SKU 17120

    For use in Heating, Cooling, and Snow Melt applications Type L copper Solder Model 2835US

    $273.81 - $273.81
    $273.81
    $273.81 - $273.81
    $273.81

  • Centrotherm 3" x 45° Elbow Long PPs-UV Black

    Centrotherm
    $22.84 - $22.84
    $22.84
    $22.84 - $22.84
    $22.84
    In stock

    SKU ISELL0345UV

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $22.84 - $22.84
    $22.84
    $22.84 - $22.84
    $22.84

  • Connector For Temp.Adj.Spindle (New M.C.)

    TanklessWaterHeaters
    $31.67 - $31.67
    $31.67
    $31.67 - $31.67
    $31.67
    Low stock

    SKU 00-80616

    $31.67 - $31.67
    $31.67
    $31.67 - $31.67
    $31.67

  • Connector (3/4")(W/Drain Plug)

    TanklessWaterHeaters
    $46.67 - $46.67
    $46.67
    $46.67 - $46.67
    $46.67
    In stock

    SKU 00-80360

    $46.67 - $46.67
    $46.67
    $46.67 - $46.67
    $46.67

  • Centrotherm 3" (80mm) steel connector to provide reinforcement at joints to support loads of 99 lbs

    Centrotherm
    $9.36 - $9.36
    $9.36
    $9.36 - $9.36
    $9.36
    In stock

    SKU IANS03

    JOINT CONNECTIONS • Each female-end of every InnoFlue® vent length or component features a factory installed gasket. Before assembly, make sure gas...

    View full details
    $9.36 - $9.36
    $9.36
    $9.36 - $9.36
    $9.36

  • 3'' to 4'' Eccentric Increaser

    Centrotherm
    $32.51 - $32.51
    $32.51
    $32.51 - $32.51
    $32.51
    In stock

    SKU ISEI0304

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $32.51 - $32.51
    $32.51
    $32.51 - $32.51
    $32.51

  • 6 Zone Pump Control

    Caleffi North America, Inc
    $326.84 - $326.84
    $326.84
    $326.84 - $326.84
    $326.84
    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
    $326.84 - $326.84
    $326.84
    $326.84 - $326.84
    $326.84

  • Centrotherm 3" (80mm) bird screen PPs-UV fits inside innoflue SW and Flex end pipes

    Centrotherm
    $21.69 - $21.69
    $21.69
    $21.69 - $21.69
    $21.69
    In stock

    SKU IASPP03

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $21.69 - $21.69
    $21.69
    $21.69 - $21.69
    $21.69

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

    Caleffi North America, Inc
    $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

  • Centrotherm 2" x 87° Elbow Long PPs-UV Black

    Centrotherm
    $13.04 - $13.04
    $13.04
    $13.04 - $13.04
    $13.04
    In stock

    SKU ISELL0287UV

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $13.04 - $13.04
    $13.04
    $13.04 - $13.04
    $13.04

  • Centrotherm 2" x 45° Elbow Long PPs-UV Black

    Centrotherm
    $13.04 - $13.04
    $13.04
    $13.04 - $13.04
    $13.04
    In stock

    SKU ISELL0245UV

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $13.04 - $13.04
    $13.04
    $13.04 - $13.04
    $13.04

  • Centrotherm 2" x 45° Short Sweep Elbow

    Centrotherm
    $11.35 - $11.35
    $11.35
    $11.35 - $11.35
    $11.35
    In stock

    SKU ISELS0245

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $11.35 - $11.35
    $11.35
    $11.35 - $11.35
    $11.35

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $50.08
    $50.08 - $50.08
    $50.08
    In stock

    SKU NA29284

    $0.00 - $0.00
    $0.00
    $50.08
    $50.08 - $50.08
    $50.08

  • 2'' to 3'' Eccentric Increaser

    Centrotherm
    $57.45 - $57.45
    $57.45
    $57.45 - $57.45
    $57.45
    In stock

    SKU ISEI0203

    Manufactured from environmentally friendly polypropylene, InnoFlue® has been tested and is listed to all relevant American, Canadian and European S...

    View full details
    $57.45 - $57.45
    $57.45
    $57.45 - $57.45
    $57.45

  • Centrotherm 2" Connector Ring

    Centrotherm
    $5.18 - $5.18
    $5.18
    $5.18 - $5.18
    $5.18
    In stock

    SKU IANS02

    JOINT CONNECTIONS • Each female-end of every InnoFlue® vent length or component features a factory installed gasket. Before assembly, make sure gas...

    View full details
    $5.18 - $5.18
    $5.18
    $5.18 - $5.18
    $5.18

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $12.23
    $12.23 - $12.23
    $12.23
    In stock

    SKU NA10003

    $0.00 - $0.00
    $0.00
    $12.23
    $12.23 - $12.23
    $12.23

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

    Caleffi North America, Inc
    $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 North America, Inc
    $0.00 - $0.00
    $0.00
    $111.39
    $111.39 - $111.39
    $111.39
    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
    $0.00 - $0.00
    $0.00
    $111.39
    $111.39 - $111.39
    $111.39

  • Z-one Relay Four Zone Valve Control

    Caleffi North America, Inc
    $205.26 - $205.26
    $205.26
    $205.26 - $205.26
    $205.26
    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
    $205.26 - $205.26
    $205.26
    $205.26 - $205.26
    $205.26

  • Z-one Relay Three Zone Valve Control

    Caleffi North America, Inc
    $172.89 - $172.89
    $172.89
    $172.89 - $172.89
    $172.89
    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
    $172.89 - $172.89
    $172.89
    $172.89 - $172.89
    $172.89

  • 4 Zone Pump Control

    Caleffi North America, Inc
    $266.84 - $266.84
    $266.84
    $266.84 - $266.84
    $266.84
    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
    $266.84 - $266.84
    $266.84
    $266.84 - $266.84
    $266.84

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $18.23
    $18.23 - $18.23
    $18.23
    In stock

    SKU 502710A

    $0.00 - $0.00
    $0.00
    $18.23
    $18.23 - $18.23
    $18.23

  • 3 Zone Pump Control

    Caleffi North America, Inc
    $228.16 - $228.16
    $228.16
    $228.16 - $228.16
    $228.16
    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
    $228.16 - $228.16
    $228.16
    $228.16 - $228.16
    $228.16

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $158.61
    $158.61 - $158.61
    $158.61
    In stock

    SKU Z45

    $0.00 - $0.00
    $0.00
    $158.61
    $158.61 - $158.61
    $158.61

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $196.17
    $196.17 - $196.17
    $196.17
    In stock

    SKU Z45P

    $0.00 - $0.00
    $0.00
    $196.17
    $196.17 - $196.17
    $196.17

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $199.18
    $199.18 - $199.18
    $199.18
    In stock

    SKU Z46

    $0.00 - $0.00
    $0.00
    $199.18
    $199.18 - $199.18
    $199.18

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $222.19
    $222.19 - $222.19
    $222.19
    In stock

    SKU Z46P

    $0.00 - $0.00
    $0.00
    $222.19
    $222.19 - $222.19
    $222.19

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $104.02
    $104.02 - $104.02
    $104.02
    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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    $0.00 - $0.00
    $0.00
    $104.02
    $104.02 - $104.02
    $104.02

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

    Caleffi North America, Inc
    $0.00 - $0.00
    $0.00
    $104.02
    $104.02 - $104.02
    $104.02
    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
    $0.00 - $0.00
    $0.00
    $104.02
    $104.02 - $104.02
    $104.02