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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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  • Viega Oxygen Barrier - Straight Length, 3/4'' x 20'

    Viega LLC
    $24.26 - $24.26
    $24.26
    $24.26 - $24.26
    $24.26
    In stock

    SKU 11500

    Viega Barrier PEX tubing For use in Heating, Cooling, and Snow Melt applications PEX Straight length Oxygen diffusion barrier, protective outer la...

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    $24.26 - $24.26
    $24.26
    $24.26 - $24.26
    $24.26

  • Viega Groove Tube, Heat Transfer Adhesive, Silicone

    Viega LLC
    $10.04 - $10.04
    $10.04
    $10.04 - $10.04
    $10.04
    In stock

    SKU 14005

    For use with Climate Panel® and heat transfer plates Suitable for U-turn panel Model 2810.1US, Viega Climate Panel Model 2810.2US, Multi-run acc...

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    $10.04 - $10.04
    $10.04
    $10.04 - $10.04
    $10.04
  • Sold out

    Viega FostaPEX - Silver Coil, 1/2'' x 150'

    Viega LLC
    $158.88 - $158.88
    $158.88
    $158.88 - $158.88
    $158.88
    Out of stock

    SKU 35020

    Viega FostaPEX tubing Only for Viega PureFlow Press fittings For use in Plumbing, Heating, Cooling, and Snow Melt applications PEX/AL/PE Coil Form...

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    $158.88 - $158.88
    $158.88
    $158.88 - $158.88
    $158.88
    Sold out

  • Viega Expansion Nipple, 1-1/4'' x 1''

    Viega LLC
    $20.74 - $20.74
    $20.74
    $20.74 - $20.74
    $20.74
    In stock

    SKU 15186

    For connecting stainless steel manifolds Nickel-​plated brass Male pipe thread

    $20.74 - $20.74
    $20.74
    $20.74 - $20.74
    $20.74

  • Sun Earth mounting clip (black anodized), clips only, set of 4

    Sun Earth, Inc
    $17.02 - $17.02
    $17.02
    $17.02 - $17.02
    $17.02
    In stock

    SKU MTG-C-100-BA

    Product Info Mounting Clip Sun Earth mounting clip (black anodized), clips only, set of 4

    $17.02 - $17.02
    $17.02
    $17.02 - $17.02
    $17.02

  • Supply flow meter valve, nickel-plated brass

    Viega LLC
    $34.85 - $34.85
    $34.85
    $34.85 - $34.85
    $34.85
    In stock

    SKU 15184

      For stainless steel manifold shutoff / balancing / flow meter Nickel-​plated brass Male pipe thread Clear plastic sight glass Model 2878.920

    $34.85 - $34.85
    $34.85
    $34.85 - $34.85
    $34.85

  • Sun Earth 58-97" Rear Telescoping Leg, Black Anodized

    Sun Earth, Inc
    $73.08 - $73.08
    $73.08
    $73.08 - $73.08
    $73.08
    In stock

    SKU MTG-RTL-5897-BA

    Telescoping Leg  The Leg attachment consists of the Rear Hinge bracket nesting in the Rear Telescoping Leg and attachment with one (1) faste...

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    $73.08 - $73.08
    $73.08
    $73.08 - $73.08
    $73.08
  • Sold out

    Viega Stainless Manifold - Shut-Off / Balancing / Flow Meters, 9 Outlets

    Viega LLC
    $571.73 - $571.73
    $571.73
    $571.73 - $571.73
    $571.73
    Out of stock

    SKU 16037

    Manifold For use in Heating, Cooling, and Snow Melt applications Equipped with Air bleeder Model 2878.914, Purge valve Model 2878.915, Supply flow...

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    $571.73 - $571.73
    $571.73
    $571.73 - $571.73
    $571.73
    Sold out

  • Viega Stainless Manifold - Shut-Off / Balancing / Flow Meters, 8 Outlets

    Viega LLC
    $533.54 - $533.54
    $533.54
    $533.54 - $533.54
    $533.54
    In stock

    SKU 16036

    Manifold For use in Heating, Cooling, and Snow Melt applications Equipped with Air bleeder Model 2878.914, Purge valve Model 2878.915, Supply flow...

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    $533.54 - $533.54
    $533.54
    $533.54 - $533.54
    $533.54

  • Viega Stainless Manifold - Shut-Off / Balancing / Flow Meters, 10 Outlets

    Viega LLC
    $608.81 - $608.81
    $608.81
    $608.81 - $608.81
    $608.81
    In stock

    SKU 16038

    Manifold For use in Heating, Cooling, and Snow Melt applications Equipped with Air bleeder Model 2878.914, Purge valve Model 2878.915, Supply flow...

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    $608.81 - $608.81
    $608.81
    $608.81 - $608.81
    $608.81

  • Steca Advanced Controller: 5 Inputs, 3T output w/ 3 sensors

    Sun Earth, Inc
    $334.65 - $334.65
    $334.65
    $334.65 - $334.65
    $334.65
    In stock

    SKU TRA503TTR

    Product features• Compact, multipart designer casing• Installation versions: Solar pump stations, wall installation, mounting rails• Wave packet (T...

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    $334.65 - $334.65
    $334.65
    $334.65 - $334.65
    $334.65

  • Salus Wireless Radiant Thermostat

    Braeburn Systems LLC
    $86.56 - $86.56
    $86.56
    $86.56 - $86.56
    $86.56
    In stock

    SKU AWRT10RF

    The SALUS Wireless Radiant Thermostat is compatible with the SALUS ARV10RFM Radiator Valve Actuators, AKL Series Wiring Centers/Relay Controllers o...

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    $86.56 - $86.56
    $86.56
    $86.56 - $86.56
    $86.56

  • Return valve

    Viega LLC
    $22.71 - $22.71
    $22.71
    $22.71 - $22.71
    $22.71
    In stock

    SKU 15181

      For stainless steel manifold shutoff / balancing, stainless steel manifold shutoff / balancing / flow meter Model 2878.919

    $22.71 - $22.71
    $22.71
    $22.71 - $22.71
    $22.71

  • Pilot Burner Assy. (PES) NAT

    TanklessWaterHeaters
    $56.67 - $56.67
    $56.67
    $56.67 - $56.67
    $56.67
    Low stock

    SKU 11-12664

    $56.67 - $56.67
    $56.67
    $56.67 - $56.67
    $56.67

  • Fernox - Boiler Commissioning Kit (1pint of F1 & F3, 4ph strips & (2) 60 test strips)

    Vista Sales
    $84.34 - $84.34
    $84.34
    $84.34 - $84.34
    $84.34
    In stock

    SKU 59480

    $84.34 - $84.34
    $84.34
    $84.34 - $84.34
    $84.34

  • Dianorm Single x 24" x 24" Radiator

    Dianorm
    $259.12 - $259.12
    $259.12
    $259.12 - $259.12
    $259.12
    In stock

    SKU 12424

    24" x 24" DiaNorm Single DiaNorm has produced millions of radiators made of high quality 1.25 mm FePO1 steel. The finish is epoxy powder coa...

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    $259.12 - $259.12
    $259.12
    $259.12 - $259.12
    $259.12

  • Dianorm Single x 16" x 16"

    Dianorm
    $194.34 - $194.34
    $194.34
    $194.34 - $194.34
    $194.34
    In stock

    SKU 11616

    16" x 16" DiaNorm Single DiaNorm has produced millions of radiators made of high quality 1.25 mm FePO1 steel. The finish is epoxy powder coatin...

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    $194.34 - $194.34
    $194.34
    $194.34 - $194.34
    $194.34

  • Dianorm Double x 20" x 48" Radiator

    Dianorm
    $360.97 - $360.97
    $360.97
    $360.97 - $360.97
    $360.97
    In stock

    SKU 22048

    20" x 48" DiaNorm Double DiaNorm has produced millions of radiators made of high quality 1.25 mm FePO1 steel. The finish is epoxy powder coa...

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    $360.97 - $360.97
    $360.97
    $360.97 - $360.97
    $360.97

  • Dianorm Double x 12" x 36" Radiator

    Dianorm
    $273.47 - $273.47
    $273.47
    $273.47 - $273.47
    $273.47
    In stock

    SKU 21236

    12" x 36" DiaNorm Double DiaNorm has produced millions of radiators made of high quality 1.25 mm FePO1 steel. The finish is epoxy powder coa...

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    $273.47 - $273.47
    $273.47
    $273.47 - $273.47
    $273.47

  • CALEFFI SOLAR 1/2" MPT AUTO AIR VENT 300 DEG RATED

    Caleffi
    $54.51 - $54.51
    $54.51
    $54.51 - $54.51
    $54.51
    In stock

    SKU 250041A

    Automatic air vent for solar systems. Working temperature range: -20—360ºF. Max. working pressure: 150 psi. Max. discharge pressure: 75 psi.

    $54.51 - $54.51
    $54.51
    $54.51 - $54.51
    $54.51

  • Caleffi replacement fuse T4A

    Caleffi
    $3.10 - $3.10
    $3.10
    $3.10 - $3.10
    $3.10
    In stock

    SKU 257208

    $3.10 - $3.10
    $3.10
    $3.10 - $3.10
    $3.10

  • 1" Union NPT Composite DirtMag with isolation ball valves

    Caleffi
    $221.31 - $221.31
    $221.31
    $221.31 - $221.31
    $221.31
    In stock

    SKU NA545356

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

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    $221.31 - $221.31
    $221.31
    $221.31 - $221.31
    $221.31

  • FLAME ROLLOUT SWITCH GA124

    Buderus
    $75.08 - $75.08
    $75.08
    $75.08 - $75.08
    $75.08
    In stock

    SKU 63034010

    $75.08 - $75.08
    $75.08
    $75.08 - $75.08
    $75.08
  • Sold out

    24V RADIANT T-STAT AIR & FLOOR

    TanklessWaterHeaters
    $219.38 - $219.38
    $219.38
    $219.38 - $219.38
    $219.38
    Out of stock

    SKU MTD39994UF

    Temperature Range (F): 40°F to 104°F Differential:  0.7°F Ambient Temperature: 32 to 122°F Height (Inches): 4.5" Width: 3" Voltage:  24v...

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    $219.38 - $219.38
    $219.38
    $219.38 - $219.38
    $219.38
    Sold out

  • Bath1 Digital Remote Control

    Rheem Sales Company Inc
    $100.41 - $100.41
    $100.41
    $100.41 - $100.41
    $100.41
    In stock

    SKU RTG20006DU

    $100.41 - $100.41
    $100.41
    $100.41 - $100.41
    $100.41

  • Sweat Sani-Brass Tankless installation valve 3/4"

    WaiWela
    $75.00 - $75.00
    $75.00
    $75.00 - $75.00
    $75.00
    In stock

    SKU WTIV-SWT-SB

    WHY ARE TIVS A GREAT VALUE? A $120 value, Tankless Installation Valves (TIVs) make installation and maintenance on your tankless water heater a ha...

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    $75.00 - $75.00
    $75.00
    $75.00 - $75.00
    $75.00

  • EZ-Link 2 Unit Communication Cable - DUOnex

    Rheem Sales Company Inc
    $39.44 - $39.44
    $39.44
    $39.44 - $39.44
    $39.44
    In stock

    SKU RTG20040

    The EZ-Link™ System is designed to electronically control two tankless water heaters operating as one. Depending upon the hot water demand, one or ...

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    $39.44 - $39.44
    $39.44
    $39.44 - $39.44
    $39.44

  • Flexcon 20.0 gallon Hydronic Tank 1" FNPT

    Flexcon
    $443.05 - $443.05
    $443.05
    $443.05 - $443.05
    $443.05
    In stock

    SKU SXHT-40

    HTX and SXHT series are designed to relieve pressure build-up in forced hot water heating systems. Both tank lines’ diaphragms are oversized, which...

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    $443.05 - $443.05
    $443.05
    $443.05 - $443.05
    $443.05

  • Dianorm Double x 36" x 36" Radiator

    Dianorm
    $617.07 - $617.07
    $617.07
    $617.07 - $617.07
    $617.07
    In stock

    SKU 23636

    36" x 36" DiaNorm Double DiaNorm has produced millions of radiators made of high quality 1.25 mm FePO1 steel. The finish is epoxy powder coa...

    View full details
    $617.07 - $617.07
    $617.07
    $617.07 - $617.07
    $617.07

  • WPM HP controller required if HSBC is not installed

    Stiebel Eltron
    $429.00 - $429.00
    $429.00
    $429.00 - $429.00
    $429.00
    In stock

    SKU 205311

    $429.00 - $429.00
    $429.00
    $429.00 - $429.00
    $429.00

  • Watts Radiant Adapter, 5/8" Compression x 3/4" Female Sweat

    Watts Radiant, Inc
    $18.29 - $18.29
    $18.29
    $18.29 - $18.29
    $18.29
    In stock

    SKU 81008102

    $18.29 - $18.29
    $18.29
    $18.29 - $18.29
    $18.29

  • PH-5 Diaphragm

    TanklessWaterHeaters
    $33.13 - $33.13
    $33.13
    $33.13 - $33.13
    $33.13
    In stock

    SKU 01-36812

    $33.13 - $33.13
    $33.13
    $33.13 - $33.13
    $33.13
  • Sold out

    Rheem Prestige High-Efficiency 199K BTU Natural Gas

    Rheem Sales Company Inc
    $1,515.94 - $1,515.94
    $1,515.94
    $1,515.94 - $1,515.94
    $1,515.94
    Out of stock

    SKU RTGH-95DVLN-2

    Product Info Rheem Prestige High-Efficiency Indoor Rheem Prestige® Condensing Gas Tankless Water Heater.  The Rheem RTGH-95DVL Prestige® se...

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    $1,515.94 - $1,515.94
    $1,515.94
    $1,515.94 - $1,515.94
    $1,515.94
    Sold out

  • Gasket (Flue Gas), DN 80 B2HA/WB2B 45/60

    Viessmann
    $25.41 - $25.41
    $25.41
    $25.41 - $25.41
    $25.41
    In stock

    SKU 7826 541

    $25.41 - $25.41
    $25.41
    $25.41 - $25.41
    $25.41

  • Viessmann SP3A 300-T tube - Single Pack

    Viessmann
    $249.38 - $249.38
    $249.38
    $249.38 - $249.38
    $249.38
    In stock

    SKU 7871 619

    $249.38 - $249.38
    $249.38
    $249.38 - $249.38
    $249.38

  • Sensor #15 (Flue Gas, NTC) AKA 7822 767

    Viessmann
    $56.10 - $56.10
    $56.10
    $56.10 - $56.10
    $56.10
    In stock

    SKU 7856 088

    $56.10 - $56.10
    $56.10
    $56.10 - $56.10
    $56.10