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The S688A is mounted in the return air duct where the sail will be in the direct path of an unrestricted air stream
The dual Ethernet port capability allows for daisy chain capability within the recommended IT standards
2-Port VC Valve Body Internal and External Thread 1/2 Inch
Mercury Free Heat Only Thermostat with Low Temperature Scale
radiant floor heat
ZD12X18TZ/U Top Seller The S688A is mounted inThis easy to wire damper includes a 24 volt motor used to control circulating air in HVAC systems. The ZD is a power close and spring open damper used when a normally open damper is required. It's typically used with TrueZONE and other electronic zoning systems.
US$ 11.00
US$ 12.99
US$ 17.00
