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Caleffi (24)
Watts Radiant (14)
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Maximum Input Capacity (BTU)
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
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40000 - 109999 (4)
110000 - 179999 (1)
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Series 519 (1)
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UPS100-40/4 (2)
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UPS50-40/4 (8)
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UPS80-80/4 (2)
Z-One (1)
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Storage Volume (Gallons)
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14 (2)
2 (4)
20 (1)
4 (6)
7 (3)
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1 - 2 (10)
3 - 4 (10)
5 - 6 (64)
7 - 8 (5)
9 - 10 (1)
11 - 12 (61)
13 - 14 (16)
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19 - 20 (1)
21 - 22 (1)
23 - 24 (4)
25 - 26 (1)
33 - 34 (1)
35 - 36 (1)
41 - 42 (1)
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Product Status
Available (291)
Discontinued (16)
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Amtrol Fill-Trol - 4.4 Gallon - Expansion Tank & Fill Valve Combination Kit - 1" Purger & Vent
Model: FT-110-100
(2)
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$187.00
Free Shipping
In-Stock
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Amtrol Fill-Trol - 4.4 Gallon - Expansion Tank & Fill Valve Combination Kit - 1-1/4" Purger & Vent
Model: FT-110-125
(2)
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$187.00
Free Shipping
In-Stock
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Amtrol Fill-Trol - 7.4 Gallon - Expansion Tank & Fill Valve Combination Kit - 1-1/4" Purger & Vent
Model: FT-111-125
(2)
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$247.00
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Factory-Direct!
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Taco 00 Series - Replacement Cartridge Assembly
Model: 003-001RP
(2)
Q&A
(1)
$120.44
Free Shipping
In-Stock
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Taco 006 - 1/40 HP - Circulator Pump - Bronze - 1/2" Sweat
Model: 006-BC4
(2)
Q&A
(1)
$313.03
Free Shipping
In-Stock
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Taco 006 - 1/40 HP - Circulator Pump - Bronze - 3/4" Sweat
Model: 006-B4
(2)
Q&As
(2)
$313.03
Free Shipping
In-Stock
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Taco Freedom Flange - 3/4" - Circulator Pump Flange Set - Cast Iron - NPT
Model: 110-251F
(2)
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$17.00
Free Shipping
In-Stock
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White Rodgers 1361-102 2-Wire Hydronic Zone Control, 24V with Screw Terminal Wiring Panel & AUX Switch, 3/4" Tubing ID
Model: 1361-102
(2)
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$200.34
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In-Stock
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Hydrolevel VXT-24 Residential Steam Boiler Water Feeder, 24 VAC
Model: VXT-24
(2)
Q&As
(2)
$323.00
Free Shipping
Factory-Direct!
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Grundfos UP - 1/25 HP - Single-Speed Circulation Pump - Bronze - 1-1/4" Union - Check Valve
Model: 98420224
(2)
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$470.00
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In-Stock
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Grundfos ALPHA1 - 1/16 HP - Variable-Speed Circulation Pump - Cast Iron - GF 15/26 Flange - With Line Cord
Model: 99285998
(2)
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$237.00
Free Shipping
Only 2 In-Stock
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Taco 006 - 1/40 HP - Circulator Pump - Stainless Steel - Union
Model: 006-SC4-1
(2)
Q&A
(1)
$303.74
Free Shipping
Only 2 In-Stock
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Taco Fast Fill Reducing Valve - Cast Iron - 1/2" Sweat Union Inlet - 1/2" NPT Outlet
Model: 329-3
(2)
Q&A
(1)
$74.08
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In-Stock
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Taco 007 - 1/25 HP - Circulator Pump - Cast Iron - Flange
Model: 007-F5
(3)
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$135.68
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In-Stock
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Amtrol Fill-Trol - Fill Valve
Model: FT-109-15
(1)
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$68.00
Free Shipping
Only 2 In-Stock
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Amtrol Fill-Trol - 7.4 Gallon - Expansion Tank & Fill Valve
Model: FT-111
(1)
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$196.00
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Factory-Direct!
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Amtrol Radiant Extrol - 2 Gallon - Radiant Floor Heating System Expansion Tank - In-Line Mounting
Model: RX-15
(1)
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$78.00
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Factory-Direct!
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Caleffi 1/2" Sweat Connection Fitting, chrome plated nut
Model: NA10262
(1)
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$7.65
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In-Stock
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Caleffi Boiler Trim Kit, 1" NPT Connections w/ BackFlow Preventer & 4.4 gal Expansion Tank
Model: NA553362
(1)
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$434.56
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Factory-Direct!
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Caleffi Boiler Trim Kit, 1-1/4" Sweat Connections w/BackFlow Preventer & 4.4 gal Expansion Tank
Model: NA553379
(1)
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$487.28
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Only 1 In-Stock
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Caleffi Discal Air Separator with 1/2" Check Valve, 1" Sweat Connections
Model: 551028AC
(1)
Q&A
(1)
$149.30
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Factory-Direct!
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Caleffi Series 681 Universal PEX Fitting, 1/2" Nominal PEX Connection, 150 psi max - QTY:1
Model: 681524
(1)
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$11.77
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In-Stock
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Caleffi Series NA103 - Connection Fitting - 1/2" NPT Male Connection - 3/4" BSP
Model: NA10313
(1)
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$8.17
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In-Stock
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Caleffi Z-One 3-Way Diverting Sweat Valve Body, 3/4" Connections, 50 PSI, 2.5 Cv
Model: Z300532
(1)
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$53.52
Free Shipping
Only 5 In-Stock
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