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Model Number 263 is a Hot Seller
tekmar - Classic Series - 263 - Boiler Control - Outdoor Temperature Reset - Two Stage or One Modulating Boiler - Domestic Hot Water - Setpoint
Model 263 is a Closeout
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$799.00
Was 
$874.00
SAVE $75.00
Only 1 In-Stock
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Model Number 070 is the Number 1 Seller
tekmar - 070 - Outdoor Sensor
27% Buy This
$33.00
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Model Number 082 is the Number 2 Seller
tekmar - 082 - Universal Sensor - 8' Wire
14% Buy This
$32.00
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Model Number 518 is the Number 3 Seller
tekmar - Classic Series - 518 - Thermostat - Non-Programmable - One Stage Heat
14% Buy This
$79.00
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Model Number 521 is the Number 4 Seller
tekmar - 521 - Thermostat - 7-Day Programmable - Two Stage Heat or One Stage Heat/ One stage Cool - Buttons
14% Buy This
$124.00
Only 4 In-Stock
Model Number 003 is the Number 5 Seller
tekmar - 003 - Relay - 24V (AC)
5% Buy This
$48.00
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tekmar - Classic Series - 356 - Mixing Control - Outdoor Temperature Reset - Variable Speed
5% Buy This
$301.00
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tekmar - 721 - 1" - 4-Way Mixing Valve
5% Buy This
$169.14
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tekmar - Performance Series - 313 - Wiring Center - Compatible with tekmarNet 2 - Four Zone Valves - For Use with tekmarNet 2 Thermostats Only
5% Buy This
$270.00
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tekmar - Performance Series - 532 - Thermostat - Non-Programmable - tN2/tN4 Compatible - One Stage Heat
5% Buy This
$107.00
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tekmar - 009K - Transformer Kit - 24V (AC) - Includes Mounting Box
5% Buy This
$82.00
Only 1 In-Stock
tekmar - 012 - Adaptor Plate - For Enclosure S
5% Buy This
$19.00
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tekmar - Designer Series - 441 - Mixing Expansion Module - Compatible with tekmarNet 4 - Actuating Motor - For Use with tekmarNet Thermostats
$560.57
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tekmar - 007 - Adaptor Plate - For Enclosure G & J
$18.29
Only 1 In-Stock
tekmar - Designer Series - 346 - Power Manager - Compatible with tekmarNet 4 - Three Auxiliary Pumps - Four Demands
$584.57
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tekmar - 033 - Timer - Compatible with tekmarNet 2 and tekmarNet 4 - Programmable
$218.29
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tekmar - Designer Series - 420 - Boiler Reset Module - Compatible with tekmarNet 4 - Outdoor Temperature Reset - Boiler - Domestic Hot Water - Setpoint
$514.86
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tekmar - Designer Series - 440 - Mixing Expansion Module - Compatible with tekmarNet 4 - Variable Speed/Floating Action - For Use with tekmarNet Thermostats
$352.57
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tekmar - Designer Series - 325 - Zone Expansion Module - Compatible with tekmarNet 4 - Six Zone Valves - For Use with tekmarNet 4 or Stand-Alone Thermostats
$297.14
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tekmar - Designer Series - 335 - Zone Manager - Compatible with tekmarNet 4 - Six Zone Valves - For Use with tekmarNet 4 or Stand-Alone Thermostats
$460.00
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tekmar - 720 - 3/4" - 4-Way Mixing Valve
$167.43
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tekmar - 712 - 1-1/4" - 3-Way Mixing Valve
$162.86
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tekmar - 713 - 1-1/2" - 3-Way Mixing Valve
$455.43
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tekmar - 714 - 2" - 3-Way Mixing Valve
$462.29
Only 1 In-Stock
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.